Omron EJ1 User Manual page 235

Determining the Error from the Status
Bits 8 to 9: Not used.
Bit 10 I/O Error
Bit 11 Lower-level I/O Error
Bit 12
I/O Alarm
Lower-level I/O Alarm
Bit 13
Bit 14
I/O Notification
Bit 15
Not used.
210
I/O Error Status
1
Bit 0
Main Input 1 Count Error
Bit 1
Main Input 2 Count Error
Bit 2
Main Input 3 Count Error
Bit 3
Main Input 4 Count Error
Bits 4 to 7: Not used.
Bits 8 to 11: Not used.
Bits 12 to 15: Not used.
0
Basic Unit/Expand Unit Error
1
Expand Unit 1 Error
Bit 0
Expand Unit 2 Error
Bit 1
Expand Unit 3 Error
Bit 2
Expand Unit 4 Error
Bit 3
Expand Unit 5 Error
Bit 4
Expand Unit 6 Error
Bit 5
Expand Unit 7 Error
Bit 6
Expand Unit 8 Error
Bit 7
Bits 8 to 11: Not used.
Bits 12 to 15: Not used.
0
1 I/O Alarm A Status
Bit 0
CT1 Heater Overcurrent
Bit 1
CT2 Heater Overcurrent
Bits 2 to 3: Not used.
Bits 4 to 7: Not used.
Bits 8 to 11: Not used.
Bits 12 to 15: Not used.
I/O Alarm B Status
Bit 0 CT1 HB Alarm
Bit 1 CT1 HS Alarm
Bit 2 CT1 OC Alarm
Bit 3 Not used.
Bit 4 CT2 HB Alarm
Bit 5 CT2 HS Alarm
Bit 6 CT2 OC Alarm
Bit 7 Not used.
Bits 8 to 11: Not used.
Bits 12 to 15: Not used.
0
Basic Unit/Expand Unit Alarm Status
1
Bit 0 Expand Unit 1 Alarm
Bit 1 Expand Unit 2 Alarm
Bit 2 Expand Unit 3 Alarm
Bit 3 Expand Unit 4 Alarm
Bit 4 Expand Unit 5 Alarm
Bit 5 Expand Unit 6 Alarm
Bit 6 Expand Unit 7 Alarm
Bit 7 Expand Unit 8 Alarm
Bits 8 to 11: Not used.
Bits 12 to 15: Not used.
0
1 I/O Notification A Status
Bit 0
CT1 Heater Current Hold
Bits 1 to 3: Not used.
Bit 4
CT2 Heater Current Hold
0 Bits 5 to 7: Not used.
Bits 8 to 11: Not used.
Bits 12 to 15: Not used.
C4/84 0005
C4/84 000F
C4/84 0006
C4/84 0007
C4/84 0010
C4/84 0009
Section 8-3