Delta AH500 - Page 473

AH500 Hardware and Operation Manual
11-24
 The rules of data exchange are described below.
Master
station
Slave station Communication
Data exchange
Master station <=> Slave station
AH500
series CPU
module
AH500 series CPU
module
AH500 Modbus
communication
protocol
M, D, and L
*1
M, D, and L
*1
Standard Modbus
communication
protocol
M
*2
M
*2
D D
DVP series PLC
Standard Modbus
communication
protocol
M
*2
M
*2
D D
Device which is
neither an AH500
series CPU
module nor a DVP
series PLC
Standard Modbus
communication
protocol
M
*2
H (contact)
*2
D H (register)
DVP series
PLC
AH500 series CPU
module
Standard Modbus
communication
protocol
D D
DVP series PLC
Standard Modbus
communication
protocol
D D
Device which is
neither an AH500
series CPU
module nor a DVP
series PLC
Standard Modbus
communication
protocol
D H (register)
*1. If the AH500 Modbus communication protocol is used, users can use relays, data registers, and link
registers.
*2. If the standard Modbus communication protocol is used, devices which are not data registers can not
be involved in synchronous data exchange.