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5 MAKING USE OF MODULES
5.2.4 Data areas for 8-channel analog input/output modules
Every 8-channel analog input module requires XW areas for input of analog data, and every 8-
channel analog output module requires YW areas for output of analog data. The table below
shows every such analog input/output module's usable channels, which are determined from the
I/O point count setting used with the I/O station, and the corresponding data area addresses.
Channel no.
0
1
2
3
4
5
6
7
5.2.5 Data formats of 8-channel analog input/output modules
(1) Data formats of 8-channel analog input modules
(a) Data format used at remote I/O transfer
Data area: XW area:
1st word
2nd word
3rd word
4th word
5th word
6th word
7th word
8th word
• If the input data area of any given channel overflows, the resulting data in the data area
is as follows:
2,047 when the overflow is caused by a positive value; or
-2,048 when the overflow is caused by a negative value.
• Input data right after power-on of the I/O power supply is H0000.
Input (output) data area address
XW (YW) △▲0+0
XW (YW) △▲0+10
XW (YW) △▲0+20
XW (YW) △▲0+30
XW (YW) △▲0+40
XW (YW) △▲0+50
XW (YW) △▲0+60
XW (YW) △▲0+70
Symbols: √: Usable; –: Not usable.
△▲: From 00 to 7F when the I/O point count setting is 16;
From 00 to 7E when the I/O point count setting is 32;
From 00 to 7C when the I/O point count setting is 64; or
From 00 to 78 when the I/O point count setting is 128.
15
14
2
2
S
Channel 0 input data
S
Channel 1 input data
S
Channel 2 input data
S
Channel 3 input data
S
Channel 4 input data
S
Channel 5 input data
S
Channel 6 input data
S
Channel 7 input data
Sign
Data: Values in the range -2,048 to 2,047
I/O point count setting
128
64
√
√
√
√
√
√
√
√
√
–
√
–
√
–
√
–
4
3
2
2
2
0 to 0
0 to 0
0 to 0
0 to 0
0 to 0
0 to 0
0 to 0
0 to 0
5-10
32
16
√
√
√
–
–
–
–
–
–
–
–
–
–
–
–
–
0
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Troubleshooting
