Hardware
Figure 18.
Relay Wiring
The following diagram shows typical connection wiring for Relay outputs.
Figure 19. Typical Relay Output Wiring
Modbus Mode Configuration
The Zlinx 485 Base module can be configured to operate in Modbus Mode. In Modbus mode messages are sent across the physical layer (wiring configuration) from the Zlinx 485 base to the Modbus network.
To use Modbus mode successfully, an understanding of the Zlinx 485 memory map assignments is necessary.
Modbus function codes supported: Function 1: Read DO Status Function 2: Read DI’s Function 3: Read AO Status Function 4: Read AI’s Function 5: Write Single DO’s Function 6: Write to Single AO Function 15: Write to Multiple DO’s
Messages sent between Zlinx 485 and a Modbus node use Modbus memory addresses to specify what type of information is being sent and where it is stored. In the Modbus addressing scheme each type of I/O (DO, DI, AI and AO) is stored in a different section of the memory.
Manual Documentation Number: