APPX
Appendix 10 Buffer Memory
213
A
Latest error code
The latest error code detected in the I/O module with diagnostic functions is stored. For details, refer to the following.
Page 200 List of Error Codes
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Buffer memory address
The following table shows the buffer memory address of this area.
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How to clear an error
Turn on and off Error clear request (Y10).
Safety module validation status
Whether the safety module function is enabled in SIL2 mode is stored.
For how to enable the safety module function, refer to the following.
Page 155 Safety module operation
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Buffer memory address
The following table shows the buffer memory address of this area.
External input monitor signal
The ON/OFF state of an external input terminal can be checked on a per-point basis. By monitoring this area when a double
input discrepancy occurs, troubleshooting becomes easy.
Also, the reference area varies depending on which status of the external input terminal of the RX40NC6B (Main) or the
RX40NC6B (Sub) needs to be monitored.
Ex.
In this example, 0 is set as the start I/O number of the RX40NC6B (Main) and 2 is set as the start I/O number of the
RX40NC6B (Sub).
Bits of external input terminals for which "Wiring input selection" is set to "Not used" are fixed to 0.
Buffer memory name
X/Y00 to X/Y0F
Latest error code
512
Stored value
Description
0001H
Disabled state
0002H
Disabled state (reset waiting)
0003H
Enabled state
0004H
Enabled state (reset waiting)
Buffer memory name
X/Y00 to X/Y0F
Safety module validation status
524
Buffer memory address
RX40NC6B (Main)
RX40NC6B (Sub)
Un\G1024
The ON/OFF status of the RX40NC6B (Main) can be
checked with External input monitor signal X00 to X0F
(SIL2 mode Main) (U0\G1024).
External input monitor signal X00 to X0F (SIL2 mode Main)
(U2\G1024) are fixed to 0.
Un\G1028
External input monitor signal X00 to X0F (SIL2 mode Sub)
(U0\G1028) are fixed to 0.
The ON/OFF status of the RX40NC6B (Sub) can be
checked with External input monitor signal X00 to X0F
(SIL2 mode Sub) (U2\G1028).
(1) 0: OFF, 1: ON
X00
(1)
X01
X02
X03
X04
X05
X06
X07
X08
X09
X0A
X0B
X0C
X0D
X0E
X0F
b0
b1
b2
b3
b4
b5
b6
b7
b8
b9
b10
b11
b12
b13
b14
b15
Содержание MELSEC iQ-RX40NC6B
Страница 1: ...MELSEC iQ R I O Module With Diagnostic Functions User s Manual Application RX40NC6B RY40PT5B ...
Страница 2: ......
Страница 125: ...4 OVERVIEW 123 4 MEMO ...
Страница 191: ...12 MAINTENANCE AND INSPECTION 189 12 MEMO ...
Страница 227: ......