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Let me know if you try this and still have trouble with it.

Individual binary bits are not allowed, though you can send an array of bits. I've done it mapping %AI to %R, with the registers configured as global, not local, variables in the Variable Declaration Table. The exchange numbers must match in both producer and consumer, even though this is the first exchange for PLC 2! Now Exchange ID 2 will send the data from the global registers selected in PLC 1 to PLC 2 and it will end up in the registers specified in the consumer exchange definition.īy the way, this does not have to be a %G point. Configure PLC 1 to act as a producer using Exchange ID 2 configure PLC 2 as a consumer with Exchange ID 2. There is 1 EGD exchange already configured in PLC 1 with another PLC that uses Exchange ID 1. You want PLC 1 to send PLC 2 a block of global register variables.

The exchange number in each PLC's EGD configuration must be the same for the exchange taking place. Make sure you keep track of the exchange number. You should be able to get a demo version of VersaPro from your GE Fanuc rep that will function for 4 days to do this if you want. "Ethernet Global Data is configured using Windows-based PLC programming software" I've used Ethernet Global Data (EGD) for this type of exchange, but I'm pretty sure you need to configure the hardware with VersaPro for this to work, as Chapter 5 of TCP/IP Ethernet Communications for the Series 90 PLC here says: By the way, I am using LogicMaster 90 to program my PLC's Thank you in advance I know that I am missing something simple and obvious, but any help anyone can give would be appreciated. (I points are inputs, Q points are outputs and M points are internal relays) What I am not sure of is how to tie the two “G” points in the two PLC’s together so when the “G” point in SCCH2 is high, it will be seen as high in SCCB. I know it has something to do with a “G” point. For example, I receive an input on one of my PLC (named SCCH2) I want to see that input on a different PLC (named SCCB) so I continue my logic in the SCCB PLC. The problem I have is understanding how to communicate between the various PLC units. I understand how to communicate back and forth between the PLC and Wonderware.

Most of my remote communication is to our Wonderware system. I have very little communication between my various PLC’s. I have 18 PLC units all connected on a network.