I have 5 independent but interactive machines in a room, each of which has a AB 1756-L72S plc. The main machine has this and a 1756-EN2T, IP address 192.168.101.1 and a WAP (Stratix 5100, 17830WAPxK9 192.168.101.20
On the four slave machines/plcs, I have discovered/added the 1756-EN2T and then under it is the backplane and then the main machine PLC, it's safety partner and then the 1756-EN2T module again (not sure that's needed or right). Then back at the same hierarchy as the original showing of the 1756-EN2T module is the 1783- WAPxK9.
Not convinced this is the right way to construct the I/O tree for the four slave machines/plcs.
Anyway, the I/O OK changes to I/O Not Responding so I'm needing help in understanding why and correcting this. Which is probably why my produced and consumed bit being sent from the main to the slaves is not responding in any kind of timely manner. Also, the bit basically stops the slave machines and when this does work, the slave machines will stagger stop, which may mean I don't have the RPI setting correct on the slaves. And of course, don't really understand how the RPI works or should be set regardless.
Any insight is appreciated. And no, I didn't set this up so I won't be insulted. But I think this is the best way (e.g. wireless) to approach a remote stop without adding cables/wires/festoons, etc.
On the four slave machines/plcs, I have discovered/added the 1756-EN2T and then under it is the backplane and then the main machine PLC, it's safety partner and then the 1756-EN2T module again (not sure that's needed or right). Then back at the same hierarchy as the original showing of the 1756-EN2T module is the 1783- WAPxK9.
Not convinced this is the right way to construct the I/O tree for the four slave machines/plcs.
Anyway, the I/O OK changes to I/O Not Responding so I'm needing help in understanding why and correcting this. Which is probably why my produced and consumed bit being sent from the main to the slaves is not responding in any kind of timely manner. Also, the bit basically stops the slave machines and when this does work, the slave machines will stagger stop, which may mean I don't have the RPI setting correct on the slaves. And of course, don't really understand how the RPI works or should be set regardless.
Any insight is appreciated. And no, I didn't set this up so I won't be insulted. But I think this is the best way (e.g. wireless) to approach a remote stop without adding cables/wires/festoons, etc.