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Communication Access Registers
870 USE 103 00 May 2001 37
Diagram of
Register Types
The three groups of internal registers are illustrated in the diagram below.
MODULE ASCII HEADER
(Read Only)
MODULE STATUS
(Read Only)
MODULE OWNERSHIP
(Read or Write)
MODULE TIMEOUT
(Read or Write)
DATA OUTPUT
(Write Only)
DATA INPUT
(Read Only)
DATA REGISTERS
MODBUS
PLUS
NETWORK
STARTING
REFERENCE
(Hex / Decimal)
LENGTH
(16-Bit Words)
CONFIGURATION REGISTERS
STATUS REGISTERS
40001 / 400001
Module
dependent
1
3
12
1... 32
Module
dependent
40001 / 400001
4F001 / 461441
4F401 / 462465
4F801 / 463489
4FC01 / 464513