Hello!
I have a data-logging project and I’m stuck on the communication.
It is a 3 node DH485 network consisting of
2-ml1500
1-pv1000
2-AIC units
I’m planning on adding a third AIC unit for the red lion logger.
I need to make sure my understanding of the AIC unit is correct first. There are three ports on the unit.
1- DH-485 phoenix connector
1- DB-9 RS232
1- RS-232 8 pin Mini DIN
All of the above ports are an rs232/rs-485 protocol depending on the number of devices connected. 232 point to point 485 multiple devices via handshaking.
(again this is what I know if Im wrong or not quite right please correct me.)
I have a bench test assembled and trying to test. The bench test consists of an ml1500 LRP series C and a Red lion data logger connected together via AIC converter.
Port 0 on the ml is configured for dh485 and is connected to port 2 (8 pin mini din) on the AIC.
The data logger is plugged into port 1 (DB-9 rs-232) on the AIC to the rs-485 port on the logger. The cable used for the connection I made from an example on red lions web site. (CBLGEN01 is the example see attached.)
I used the cross reference on the web site for the cable. However I might not be thinking right. Link to cross-reference http://www.redlion.net/Support/Downloads/DeviceDrivers/G3/AllenBradley.html
The RS-485 port on the logger is configured as a DH485 master.
Port mode- 2 wire RS485
Station number 0
I cannot get any communication between the ml1500 and the red lion unit that I can tell. I’m not sure if I have a handshake issue or something else. The Tx and Rx lights are on. The red Rx led on the logger is solid and the green Tx led if flashing.
Maybe I need to use a 1747-AIC link to tie directly into the DH 485 network?
Thank you in advance!
I have a data-logging project and I’m stuck on the communication.
It is a 3 node DH485 network consisting of
2-ml1500
1-pv1000
2-AIC units
I’m planning on adding a third AIC unit for the red lion logger.
I need to make sure my understanding of the AIC unit is correct first. There are three ports on the unit.
1- DH-485 phoenix connector
1- DB-9 RS232
1- RS-232 8 pin Mini DIN
All of the above ports are an rs232/rs-485 protocol depending on the number of devices connected. 232 point to point 485 multiple devices via handshaking.
(again this is what I know if Im wrong or not quite right please correct me.)
I have a bench test assembled and trying to test. The bench test consists of an ml1500 LRP series C and a Red lion data logger connected together via AIC converter.
Port 0 on the ml is configured for dh485 and is connected to port 2 (8 pin mini din) on the AIC.
The data logger is plugged into port 1 (DB-9 rs-232) on the AIC to the rs-485 port on the logger. The cable used for the connection I made from an example on red lions web site. (CBLGEN01 is the example see attached.)
I used the cross reference on the web site for the cable. However I might not be thinking right. Link to cross-reference http://www.redlion.net/Support/Downloads/DeviceDrivers/G3/AllenBradley.html
The RS-485 port on the logger is configured as a DH485 master.
Port mode- 2 wire RS485
Station number 0
I cannot get any communication between the ml1500 and the red lion unit that I can tell. I’m not sure if I have a handshake issue or something else. The Tx and Rx lights are on. The red Rx led on the logger is solid and the green Tx led if flashing.
Maybe I need to use a 1747-AIC link to tie directly into the DH 485 network?
Thank you in advance!
