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Contents of system area
The system area of the input register consists of 1 word per port. The contents depend on operation mode
(communication mode). In addition, when serious failure (except for a WDT error) occurs during operation, The
serious failure error code is indicated in the system area for port 1 regardless of operation mode.
WX u s 2
WX u s 3
No.
Status of communication port
1
Before initial setting
2
Free protocol mode
3
Modbus master mode
4
Modbus slave mode
5
Hi-Protocol mode
6
Simple data link mode
*1 The number of the data which EH-SIO made one packet. However, when an error occurs to receiving data, error information
is also treated as one packet.
*2 Error code at receiving query. If the next query is received properly, the error code is cleared.
*3 The contents of an error occurred at the time of request task code reception are displayed. An error will be cleared if the task
code which received after that is processed normally. (It is set to H0000.)
*4 WXus2 is H0000 fixation. The contents of an error occurred at the time of the data link are displayed on WXus3. Restoration
of the data link clears an error. (It is set to H0000.)
System are for Port 1
System are for Port 2
Figure 5.10 System area of input register
Table 5.3 Contents of system area (Port1, 2 common)
Software version
The number of effective packets of the data received in the port*
Not used ( H0000 fixed )
The newest error code*
The newest error code*
The newest error code*
5 - 11
Chapter 5 Control of EH-SIO
Contents of display
2
3
4
1
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