Background information:
I had an existing system with a SLC 5/05 and a 1746-BAS card that was talking to 4 Honeywell controllers but broke at some point (most likely because the 1746-BAS lost power and lost its program).
I replaced those components with a 1756-L81E and a Prosoft MVI56E-MCM card. After tracing all the wires, and identifying 1 bad cable, I disconnected 3 of the Honeywell controllers from the chain.
Before the disconnect: Prosoft card --> Node 2 --> Node 1 --> Node 18 --> Node 19
After the disconnect: Prosoft card --> Node 2
The previous wiring was very strange. See the picture labeled Back.jpg. I have rewired things so they match the Schematic.jpg except there are no resistors.
Node 2 information can be found here:
https://industrial-stores.com/files/Honeywell - Model DC330B.pdf
Node 2 settings are the following:
ComState: RS422
ShedTime: 30
Parity: Even
Baud: 9600
Duplex: Half
Shedmode: LAST
SHEDSP: TO LSP
Problem:
I cannot get this new temporary system to work with any settings I try. I have tried RS422 and RS485 on the Prosoft side. I feel like I have tried every combination of 9600 baud available. I have tried RTU and ASCII. I have tried 7 data bits and 8 data bits. I typically do a warm boot when changing settings but have tried some cold boots also. The only result I get from the Prosoft card is -11 which means "wiring issue".
Looking at the documents and pictures for this Honeywell controller; does anyone know what settings I should use to talk to it?
I appreciate any advice and/or thoughts.
I had an existing system with a SLC 5/05 and a 1746-BAS card that was talking to 4 Honeywell controllers but broke at some point (most likely because the 1746-BAS lost power and lost its program).
I replaced those components with a 1756-L81E and a Prosoft MVI56E-MCM card. After tracing all the wires, and identifying 1 bad cable, I disconnected 3 of the Honeywell controllers from the chain.
Before the disconnect: Prosoft card --> Node 2 --> Node 1 --> Node 18 --> Node 19
After the disconnect: Prosoft card --> Node 2
The previous wiring was very strange. See the picture labeled Back.jpg. I have rewired things so they match the Schematic.jpg except there are no resistors.
Node 2 information can be found here:
https://industrial-stores.com/files/Honeywell - Model DC330B.pdf
Node 2 settings are the following:
ComState: RS422
ShedTime: 30
Parity: Even
Baud: 9600
Duplex: Half
Shedmode: LAST
SHEDSP: TO LSP
Problem:
I cannot get this new temporary system to work with any settings I try. I have tried RS422 and RS485 on the Prosoft side. I feel like I have tried every combination of 9600 baud available. I have tried RTU and ASCII. I have tried 7 data bits and 8 data bits. I typically do a warm boot when changing settings but have tried some cold boots also. The only result I get from the Prosoft card is -11 which means "wiring issue".
Looking at the documents and pictures for this Honeywell controller; does anyone know what settings I should use to talk to it?
I appreciate any advice and/or thoughts.
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