AutomationDirect DURAPULSE GS3-43P0 - CHAPTER 5: DURAPULSE MODBUS COMMUNICATIONS

DURAPULSE
MODBUS
COMMUNICATIONS
5
CHAPTER
CHAPTER
5
5
CHAPTER
Contents of this Chapter...
Communications Parameters Summary . . . . . . . . . . . . . . . .5–2
DURAPULSE Parameter Memory Addresses . . . . . . . . . . . . . . . . . . . . . . . .5–4
DURAPULSE Status Addresses . . . . . . . . . . . . . . . . . . . . . . . .5–11
Communicating with AutomationDirect PLCs . . . . . . . . . .5–14
Step 1: Choose the Appropriate CPU . . . . . . . . . . . . . . . . . . . . . . . . .5–14
Step 2: Make the Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–14
DURAPULSE RS-485 Serial Comm Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–14
RS-485 Connections For Multiple Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–15
RS-232C to RS-485 Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–16
Ethernet Connection using GS-EDRV(100) . . . . . . . . . . . . . . . . . . . . . . . . . . .5–18
Step 3: Set AC Drive Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–19
Step 4: Configure the PLC CPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–19
Configure the CLICK PLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–19
Configure the DirectLOGIC CPUs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–21
CLICK Modbus Ladder Programming . . . . . . . . . . . . . . . .5–23
Separate Run Command Write Instruction . . . . . . . . . . . . . . . . . . . . . .5–23
Block Transfer Parameters for Modbus Programs . . . . . . . . . . . . . . . . .5–23
CLICK Communication Program – (for CLICK PLCs) . . . . . . . . . . . . . .5–24
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