Title: +038=360.012-#####._06-BA-ESR NI-DV Controller Nicotra Gebhardt - Operating Instruction.pdf
3.4.14. Modbus connection • NI-DVis equipped with forfour Modbusconnectors connection. It also features 3 x RJ12 connectors and one strip of spring terminals.On the terminal strip with spring terminals for control signals (A/D I/O), the terminals for connecting Modbus are marked ”Bus A”, ”Bus B” and ”GND”. See fig. 3-13.1. If wanted, a round cable can be used for Modbus communication, connected to terminals marked ”Bus A” and ”Bus B” on the NI-DV terminal strip. Fig. 3-13.1On the terminal strip with spring terminals for control signals (A/D I/O), the terminals for connecting Modbus are marked ”Bus A”, ”Bus B” and ”GND”. See fig. 3-13.1. If wanted, a round cable can be used for Modbus communication, connected to terminals marked ”Bus A” and ”Bus B” on the NI-DV terminal strip. Fig. 3-13.1The Modbus terminals are internally connected in parallel to the Modbus pins in the RJ12 connectors marked ”A” and ”B”.