OPERATION MANUAL CompoBus/S

Checking Operations for CS-series, C200HX/C200HG/C200HE-(Z)E, and C200HS Master Units Section 6-2
The following table shows some examples of node number displays.
Situation Indicator status Possible remedy
ERC I/O 8 4 2 1
Communications error in the Input ON OFF ON ON OFF ON Check the communications cable to Input
Slave with node number 13
Slave 13 and the status of the Slave itself.
Communications error in the Output ON ON OFF ON ON OFF Check the communications cable to Output
Slave with node number 6
Slave 6 and the status of the Slave itself.
Communications error in the Input ON OFF OFF OFF OFF OFF Check the communications cable to Input
Slave with node number 0
Slave 0 and the status of the Slave itself.
A communications error occurs in ON OFF OFF OFF ON ON First, check the communications cable to
the Output Slave with node number
Input Slave 3 and the status of the Slave
11 after an error occurs in the Input
itself.
Slave with node number 3.
Once the error in Input Slave 3 is cleared,
the display will show the error in Output
Slave 11 and this error can be cleared.
6-2-2 Checking Status Using Status Information
Status Area Location and
Configuration
When using CS-series, C200HX/C200HG/C200HE-(Z)E, or C200HS Master
Units, information on active Slave status and communications error status is
stored for each Slave in the status area of the PLC’s Special I/O Unit Area.
The location and configuration of the status area is shown in the following
table.
Usable Node Number is IN0 to IN7 and OUT0 to OUT7
Two words are used for flags when the max. number of Slaves setting is 16.
PLC Location of Status Area
CS-series PLCs First word = 2000 + unit number × 10
C200HX/C200HG/ Unit numbers 0 to 9:
C200HE-(Z)E, and First word = 100 + unit number × 10
C200HS PLCs Unit numbers A to F (10 to 15):
First word = 400 + (unit number – 10) × 10
First
word + 8
First
word + 9
Output Slave Communications Error Flags
Slave 7 - - - - - - - - - - - - - - - - - - - - - - - 0
Input Slave Communications Error Flags
Slave 7 - - - - - - - - - - - - - - - - - - - - - - - 0
Usable Node Number is IN0 to IN15 and OUT0 to OUT15
Four words are used for flags when the max. number of Slaves setting is 32.
PLC Location of Special I/O Unit Area
CS-series PLCs First word = 2000 + unit number × 10
C200HX/C200HG/ Unit numbers 0 to 8:
C200HE-(Z)E, and First word = 100 + unit number × 10
C200HS PLCs Unit numbers A to E (10 to 14):
First word = 400 + (unit number – 10) × 10
Bits
Active Output Slave Flags
Slave 7 - - - - - - - - - - - - - - - - - - - - - - - 0
Active Input Slave Flags
Slave 7 - - - - - - - - - - - - - - - - - - - - - - - 0
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