Omron 3G8F7-CRM21 User Manual page 144

Shared Memory Area Specifications
124
If the error counter value exceeds the threshold, the CompoNet Master Board
will deem the relevant Slave or Repeater Unit to have a communications error.
The error counter can also be used to determine the network quality, even
when there is no communications error.
Data format
Offset address: 0x041A
Offset
(Word)
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
+0 Error counter value for Word IN/MIX
Slave Unit #1
to
+31 Error counter value for Word IN/MIX
Slave Unit #63
+32 Error counter value for Word OUT
Slave Unit #1
to
+63 Error counter value for Word OUT
Slave Unit #63
+64 Error counter value for Bit IN/MIX
Slave Unit #1
to
+127 Error counter value for Bit IN/MIX
Slave Unit #127
+128 Error counter value for Bit OUT Slave
Unit #1
to
+191 Error counter value for Bit OUT Slave
Unit #127
+192 Error counter value for Repeater Unit
to
+223 Error counter value for Repeater Unit
Detailed format
Name Access
Error counter value Read
Bit
Error counter value for Word IN/MIX
to
Error counter value for Word IN/MIX
Error counter value for Word OUT
to
Error counter value for Word OUT
Error counter value for Bit IN/MIX
to
Error counter value for Bit IN/MIX
Error counter value for Bit OUT Slave
to
Error counter value for Bit OUT Slave
Error counter value for Repeater Unit
#1
to
Error counter value for Repeater Unit
#63
The error counter is incremented each time an
error occurs. It increments among the range
specified for each data rate. What you can read
by this counter is the highest counter value
among the counter counts by the time you read
the counter value.
When it reaches the maximum, it indicates a
communications error.
In data rate of 4 Mbps: 0 to 24
3 Mbps: 0 to 22
1.5 Mbps: 0 to 14
Section B-3
Slave Unit #0
to
Slave Unit #62
Slave Unit #0
to
Slave Unit #62
Slave Unit #0
to
Slave Unit #126
Unit #0
to
Unit #126
#0
to
#62
Description
93.75 kbps: 0 to 3