160
SR Area
Section 3-3
Controller Link Status
Area 2 (IR 190 to IR 195)
3-3
SR Area
These bits mainly serve as flags related to CQM1H operation. The following
table provides details on the various bit functions.
SR 244 to SR 247 can also be used as work bits when input interrupts are not
used in Counter Mode.
IR 094
00 to 15
Not used.
IR 095
00 to 10
Always 0
11
Terminator Status
0: Terminating resistance switch OFF
1: Terminating resistance switch ON
12 to 15
Always 0
Word
Bits
Function
Word
Bits
Function
IR 190
00
Network Parameters Error Flag
1: Error occurred; 0: No error
01
Data Link Table Error Flag
1: Error occurred; 0: No error
02
Routing Table Error Flag
1: Error occurred; 0: No error
03 to 06
Always 0
07
EEPROM Write Error Flag
1: Error occurred; 0: No error
08
Always 0
09
Node Number Duplication Error Flag
1: Error occurred; 0: No error
10
Network Parameters Mismatch Error Flag
1: Error occurred; 0: No error
11
Communications Controller Transmitter Error Flag
1: Error occurred; 0: No error
12
Communications Controller Hardware Error Flag
1: Error occurred; 0: No error
13 and 14
Always 0
15
Error Log Flag
1: Error record recorded; 0: No error records recorded
IR 191
00 to 07
Polling Node’s Node Number
08 to 15
Startup Node’s Node Number
IR 192 and
IR 193
00 to 15
Network Participation Status
1: Participating in network; 0: Not participating in network
IR 194 and
IR 195
00 to 15
Not used.
Word
Bit(s)
Function
Page
SR244
00 to 15
Input Interrupt 0 Counter Mode SV
SV when input interrupt 0 is used in Counter Mode (4-digit hexadecimal, 0000 to FFFF).
(Can be used as work bits when input interrupt 0 is not used in Counter Mode.)
28
SR245
00 to 15
Input Interrupt 1 Counter Mode SV
SV when input interrupt 1 is used in Counter Mode (4-digit hexadecimal, 0000 to FFFF).
(Can be used as work bits when input interrupt 1 is not used in Counter Mode.)
SR246
00 to 15
Input Interrupt 2 Counter Mode SV
SV when input interrupt 2 is used in Counter Mode (4-digit hexadecimal, 0000 to FFFF).
(Can be used as work bits when input interrupt 2 is not used in Counter Mode.)
SR247
00 to 15
Input Interrupt 3 Counter Mode SV
SV when input interrupt 3 is used in Counter Mode (4-digit hexadecimal, 0000 to FFFF).
(Can be used as work bits when input interrupt 3 is not used in Counter Mode.)