Register Configuration - Hitachi EH-150 Series Applications Manual

5.2.1

Register configuration

The function of the input / output register is shown below.
Word No Direction
WX u s 0 CPUEH-SIO
(CPU Read)
WX u s 1 CPUEH-SIO
(CPU Read)
WX u s 2 CPUEH-SIO
(CPU Read)
WX u s 3 CPUEH-SIO
(CPU Read)
WY u s 4 CPUEH-SIO
(CPU Write)
WY u s 5 CPUEH-SIO
(CPU Write)
WY u s 6 CPUEH-SIO
(CPU Write)
WY u s 7 CPUEH-SIO
(CPU Write)
u : Unit No. ( 0 to 4 )
s : Slot No. ( 0 to 7 )
0 ~ 7 : Word No. which EH-SIO occupies
*Dedicated procedure  Modbus slave mode, Hi-Protocol mode
Table 5.1 Function of Input / Output register
Status register for port 1
The data about the state of a port 1 is set.
Status register for port 2
The data about the state of a port 2 is set.
System area for port 1
Before initial setting :
In free protocol mode :
In dedicated procedure mode :
In Simple data link mode :
Note : An error code is indicated when serious failure occurs in the system of
EH-SIO.
System area for port 2
Before initial setting :
In free protocol mode :
In dedicated procedure mode :
In Simple data link mode :
Control register for port 1
The data for CPU module controlling a port 1 is set.
Set by CPU module or user.
Control register for port 2
The data for CPU module controlling a port 2 is set.
Set by CPU module or user.
System area for port 1
Note: Please do not write. It is used by CPU module
System area for port 2
Note: Please do not write. It is used by CPU module
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Chapter 5 Control of EH-SIO
Function
Used by system
Number of receive packets
Error code
Used by system
Software version
Number of receive packets
Error code
Error code