Delta AH500 Hardware Operation Manual page 473

A H 5 0 0 H a r d w a r e a n d O p e r a t i o n M a n u a l

The rules of data exchange are described below.
Master
station
AH500 series CPU
module
AH500
series CPU
DVP series PLC
module
Device which is
neither an AH500
series CPU
module nor a DVP
series PLC
AH500 series CPU
module
DVP series PLC
DVP series
PLC
Device which is
neither an AH500
series CPU
module nor a DVP
series PLC
*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.
11 - 2 4
Slave station Communication
AH500 Modbus
communication
protocol
Standard Modbus
communication
protocol
Standard Modbus
communication
protocol
Standard Modbus
communication
protocol
Standard Modbus
communication
protocol
Standard Modbus
communication
protocol
Standard Modbus
communication
protocol
Data exchange
Master station <=> Slave station
*1
M, D, and L M, D, and L
*2 *2
M M
D D
*2 *2
M M
D D
*2
M H (contact)
D H (register)
D D
D D
D H (register)
*1
*2