Plc 5 allen bradley manual

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You may find in some areas you have an equal number of input and output modules, and slot complementary optimizing works well. However, you may find in other areas there are space limitations which require the use of the smallest possible chassis, and therefore, you cannot waste slots using slot complementary. A final point to be aware of is that each system is unique and you must apply these techniques accordingly.

For a complete listing, contact your local Rockwell Automation sales office. The processor with the lowest node address acts as the master keeper, while the other processors serve as backups. If the master keeper drops off the network, the next-lowest numbered processor takes over as the master keeper. No user intervention is required.

All later releases are distributed keeper devices. However, there cannot be a single keeper device at node 1. If you plan to have distributed keeper devices on the network, we recommend that you flash upgrade the single keeper devices to be distributed keeper devices. The software sets Channel 2 to the default ControlNet configuration. If you do not update the program, the ControlNet processor will fault. You must change block-transfer instructions for the ControlNet system from the standard block transfer read BTR and block transfer write BTW instructions to scheduled transfers or to unscheduled CIO instructions.

Information regarding ControlNet status is stored in a separate data file that you specify through the programming software. Converting from ControlNet Phase 1. To convert ControlNet phase 1. Although the software packages are separate tools, they have specific interdependencies that must be met in order to keep projects synchronized between one another.

RSNetWorx creates a project. RSLogix 5 creates a project. These two software packages are separate tools because RSNetWorx is used to configure the entire ControlNet network and RSLogix 5 is used to configure node-specific information. If the RSNetWorx project. You must configure the association to the RSNetWorx project.

Certain circumstances can cause the data table configuration information to differ from what is stored in the RSNetWorx project. This will ensure that the edits are written to both the data table and the RSNetWorx project. There are two reasons why the RSLogix 5 project. When downloading the ControlNet configuration information from RSLogix 5, a dialog box appears and asks whether the ControlNet configuration information stored in the RSLogix 5 project should be downloaded. With this approach, you will want to overwrite the existing ControlNet configuration that is currently on the ControlNet PLC-5 processor with the ControlNet configuration information that is stored in the RSLogix 5 project.

Important: This approach simplifies the download to a single operation, however it requires the maintenance of keeping the RSLogix 5 project. This is required because a network keeper signature is reevaluated every save and is unique for every save. The network keeper signature is downloaded to every keeper-capable device on the ControlNet network. In Network menu, choose Keeper Status 2.

If any keepers are invalid, select the node s and click Update Keeper To verify scanner signatures: 1. In Network menu, choose Scanner Signature Status 2. If any scanners are invalid, download the RSNetWorx project to the processors that indicate a scanner signature mismatch you may have to follow additional troubleshooting procedures in RSNetWorx to correct the scanner signature mismatch.

The new schedule is downloaded to all the processors. The processors close all of their existing connections and then reopen their connections according to the new schedule. This option requires that all the processors be in Program mode. The new schedule is only downloaded to those processors that are affected by the change.

Only those processors that are affected by the change have to be in Program mode. All other processors on the network can remain in Run mode and their connections remain open. This option is only available if the current schedule can accommodate the pending changes and if the ControlNet network parameters such as NUT, maximum scheduled address, maximum unscheduled address, or media redundancy do not change. EW Enabled-waiting flag bit word 0, bit CO Continuous control bit word 0, bit ER Errored flag bit word 0, bit DN Done flag bit word 0, bit ST Started flag bit word 0, bit EN Enabled flag bit word 0, bit TO Abort Time out control bit word 0, bit NR No-response flag bit—not used word 0, bit NC No-cache bit word 0, bit ERR Error-code word word 1.

RLEN Requested length word word 2. DLEN Done length word word 3. DATA[0] through. DATA[51] Remaining words words 4 through 55 For more detailed information about writing ladder programs and using message instructions, see your programming software documentation.

Do this by setting the. NC configuration bit in the ladder MSG control file. The PLC-2 file number must be between 3 and , inclusive.

The corresponding data table file must exist and be large enough to accommodate the PLC-2 requests. You can use a MOV instruction in the ladder program to update S In this case, you must make sure that your data table can accommodate up to 64 words.

FILE Transfer file number word 4. ELEM Transfer element number word 5. This allows the processor to send commands to devices not listed in the command type list, or to send special CIP commands to devices.

Use of these command types requires specific details of the device to which the command is being sent. For more detailed information about writing ladder programs, see your programming software documentation. Sending Continuous Messages If you use continuous mode message instructions, do not toggle the rung condition unless the continuous message is done or errored.

The Data File Offset is the offset into the buffer where the data is stored. The Length 10 identifies the number of words in the transfer—it can be an immediate value ranging from 1 to 64 or a logical address that specifies the number of words to be transferred.

The Destination N is the destination of the words to be transferred. See page The Length 24 identifies the number of words in the transfer or a logical address that specifies the number of words to be transferred.

The Source N is the source of the words to be transferred. A Selectable Timed Interrupt STI periodically interrupts primary program execution in order to run a subprogram to completion. To ensure data-block integrity, write your STI routine so that it operates on its own copy of the data block that it needs. For detailed information about STIs, see your programming software documentation. Recovering from Major Fault and A Major Fault with error code and means that the processor was unable to transmit the scheduled data it is configured to transmit.

This is typically caused by disturbances on the ControlNet channel because of missing terminators, bad connectors, or noisy conditions. These disturbances may cause the processor to fall off the network while its trying to transmit its scheduled data. If you consistently get these faults, you may want to check and repair the cable. This fault can also occur when the processor falls behind and did not have the scheduled data ready to send on time.

Depending on the requirements of the application, you may consider adding a fault routine to the application to clear an occurrence of a Major Fault with error code and For detailed information about creating fault routines, refer to chapter 16 of the Enhanced and Ethernet PLC-5 Programmable Controllers User Manual, publication If you are unable to reload your program, replace the processor. If you are able to reload your program and fault persists, contact Technical Support at Check media for broken cables, loose connectors, missing terminators, etc.

This file will allow you to monitor for noise via ladder and HMI query , to monitor the overall health of scheduled connections words 40 and 41 , and to monitor ControlNet buffer usage.

For more information, refer to publication See the Product Certification link at www. Each product is supplied with markings on the rating nameplate indicating the hazardous location temperature code. Combinations of equipment in your system are subject to investigation by the local Authority Having Jurisdiction at the time of installation. Do not disconnect equipment unless power has been removed or the area is known to be nonhazardous.

Secure any external connections that mate to this equipment by using screws, sliding latches, threaded connectors, or other means provided with this product. See major fault codes S You can use user-defined fault codes to identify different types of faults or error conditions in your program by generating your own recoverable fault. To use these fault codes, choose an input condition that decides whether to jump to a fault routine file, then use the JSR instruction as the means to jump to the fault routine file.

To use the JSR instruction, enter the fault code number an immediate value as the first input parameter of the instruction. Any other input parameters are ignored even if you have an SBR instruction at the beginning of your fault routine file. You do not have to use the user-defined fault codes to generate your own fault. If you program a JSR with no input parameters, the processor will write a zero to the Fault Code field.

The purpose of using the user-defined fault codes is to allow you to distinguish among different types of faults or error codes based on the fault code numbers.

When the input condition is true, the processor copies the fault code number entered as the first input parameter of the JSR instruction into word 12 of the processor status file S , which is the Fault Code field.

Recoverable: the fault routine can instruct the processor to clear the fault and then resume scanning the program. Processor Status File B-5 This fault code: Indicates this fault: And the fault is: 10 Run-time data table check failed 11 Bad user program checksum 12 Bad integer operand type, restore new processor memory file Recoverable: the fault routine can instruct the processor to clear the fault and then resume scanning the program.

The processor is unable to transmit the scheduled data it is configured to transmit. B-7 Recoverable Check your network for missing terminators or other sources of electrical noise see the Industrial Automation Wiring and Grounding Guidelines, publication The processor is unable to process incoming data from the network. Recoverable Check your network for missing terminators or other sources of electrical noise see the Industrial Automation Wiring and Grounding Guidelines, publication Recoverable Contact your local Rockwell Automation representative if you get this message.

Recoverable Make scheduled outputs with short Requested Packet Intervals longer and reaccept edits for the ControlNet configuration. You must cycle power, save with RSNetWorx, or download the program to reopen the connections. Increase your ladder program scan by either adding more logic or by increasing the Communications Time Slice S See S and S for additional information. Contact your local Rockwell Automation representative if you get this message.

Change from the Invalid backup state to the No Control backup state before transitioning into Run mode. Refer to the Invalid backup state troubleshooting table later in this chapter. Transition the PLC-5 processors into Run mode one at a time. Check all media for broken cables, loose connectors, missing terminators, etc. Reconfigure the ControlNet channel. Refer to the qualification major faults troubleshooting table later in this chapter.

When set, local rack address is 1. When set, eliminates frequent checksum errors to certain BT modules. When set 1 , user cannot edit the data table or modify forces while the processor keyswitch is in the RUN position. S Reserved. S Installed memory card type. The bit resets when contact is detected open 1 the relay is driven open. The bit resets when the relay is closed. The bit resets when Vac is not present on the card. When any other memory card is installed, the bits are undefined S ControlNet node number of this processor.

S Time in milliseconds between iterations of the ControlNet subsystem diagnostics When this value exceeds , the processor may major fault with error code The Control Block CT contains status and instruction parameters. The Control Block MG contains status and instruction parameters. The Data file offset is the offset into the buffer where the data is stored.

The Length 24 identifies the number of words in the transfer—it can be an immediate value ranging from 1 to 64 or a logical address that specifies the number of words to be transferred. The Data file offset is where the data is stored. This bit has no effect for block transfer modules. If the target node is a ControlNet adapter, the adapter will go into idle mode. The processor will not attempt to reopen the connection as long as this bit is set. Clear this bit to allow the processor to attempt to open the associated connection.

Clear this bit when you are finished processing the current sample of data. This means that PCSC data is arriving faster than your ladder program is processing it. Clear this bit after you modify your ladder program to handle the incoming PCSC data.

This has the same effect as if you disconnected the target node from the ControlNet network. If the target node is a ControlNet adapter and the adapter is setup for Processor Restart Lockout, the adapter will go into Processor Restart Lockout mode.

The processor clears this bit when valid data is received from the associated target node. In your program, make sure that this bit is clear before you use the associated data. The processor clears this bit when the associated connection is made to the target node. The Data Invalid Bit will not be set. If bit x is set, then the module in slot x is missing, bad, or is the wrong type. Reenter the map entry that is failing.

Reenter the ladder instruction that is failing. The target node is not powered. Supply power to the target node. The slot addressed does not exist. Use a rack with more slots. The map table is corrupted. Edit the ladder program so that the correct target node is used.

Replace the target node with the correct type of node. Clear the inhibit and immediate inhibit bits for the target Scheduled Peer Output map entry. For example, a CIO tried to send safe-state data to a Flex module that does not support safe-state data. Insert a module that can have this attribute set into the correct slot. Edit the ladder program so that it does not attempt to set this attribute.

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