21-05-2021
Allen Bradley Plc 5 Slot Addressing
Allen Bradley Plc 5 80
Allen Bradley; Explain Groups When Addressing Sign in to follow this. 1 rack = 8 groups for 2-slot addressing, 1 group = 2 slots for 1-slot addressing, 1 slot = 1 group for half-slot addressing, 1 slot = 2 groups In the beginning, there were only 8-point IO modules and only 2-slot addressing. There were only 8-point IO. Welcome to the NI Labs EtherNet/IP Industrial Protocol Support project. This thread is intended to foster discussion about the project, so please post your questions, comments, suggestions and bug reports and I'll be happy to respond. This library allows direct communication between NI systems running LabVIEW and various PLCs using the EtherNet/IP industrial communications protocol.
October 31st, 2006, 11:57 PM
Allen Bradley Plc 5 Addressing
Hi all,
Current configuration of the PLC-5 chassis is as follows:
All dc DI cards are placed left-most position which are closest in the chassis to the PLC-5 processor. Then the dc DO cards. We didn't have any AI,AO cards at all, and there are some racks in the chassis which are blanked.
Now we need to expand our PLC system by additional dc DI/DO card, we need to just simple place those new cards into the blanked rack? Or we need to re-adjust the placement order in the chassis (such that all DI cards (current or new installed) placing the left-most position first)?
We found the placement order priority in the Allen-Bradley PLC-5 manual and they did mention we need to place all DI cards in the left-most position first.
Please help! Thank a lot!
Current configuration of the PLC-5 chassis is as follows:
All dc DI cards are placed left-most position which are closest in the chassis to the PLC-5 processor. Then the dc DO cards. We didn't have any AI,AO cards at all, and there are some racks in the chassis which are blanked.
Now we need to expand our PLC system by additional dc DI/DO card, we need to just simple place those new cards into the blanked rack? Or we need to re-adjust the placement order in the chassis (such that all DI cards (current or new installed) placing the left-most position first)?
We found the placement order priority in the Allen-Bradley PLC-5 manual and they did mention we need to place all DI cards in the left-most position first.
Please help! Thank a lot!