Omron CPM2C-S100C, Руководство по эксплуатации, Страница: 137 / 269

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Communications Status Section 5-3
5-3 Communications Status
The status of communications with CompoBus/S Terminals is indicated with
the status flags in AR 04 through AR 07. Bits 0 to 7 contain the Active Slave
Flags and bits 8 to 15 contain the Slave Communications Error Flags.
Note 1. IN0 to IN15 are the input terminals and OUT0 to OUT15 are the output ter-
minals.
2. When the maximum number of CompoBus/S units is set to 16, IN8 to IN15
and OUT8 to OUT15 cannot be used.
3. Each Active Slave Flag is turned ON when the corresponding Slave is par-
ticipating in communications. When the power to the CPU Unit is turned
OFF and ON again all of the Active Slave Flags are turned OFF.
4. Each Slave Communications Error Flag is turned ON when a Slave that
was participating in the network is separated from the network. The bit is
turned OFF when the Slave re-enters the network.
5. An error is not generated at the CPM2C-S if there are duplicated node ad-
dress settings for Slaves or if there is a communications error, such as
communications failure or a disconnection. Therefore, use the above sta-
tus flags in the ladder program to confirm whether or not node addresses
are set correctly, and whether or not Slaves are operating correctly.
Word Uppermost bits: Slave Communications Error Flags Lower Bits: Active Slave Flags
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
AR04 OUT7 OUT6 OUT5 OUT4 OUT3 OUT2 OUT1 OUT0 OUT7 OUT6 OUT5 OUT4 OUT3 OUT2 OUT1 OUT0
AR05 IN7 IN6 IN5 IN4 IN3 IN2 IN1 IN0 IN7 IN6 IN5 IN4 IN3 IN2 IN1 IN0
AR06 OUT
15
OUT
14
OUT
13
OUT
12
OUT
11
OUT
10
OUT
9
OUT
8
OUT
15
OUT
14
OUT
13
OUT
12
OUT
11
OUT
10
OUT
9
OUT
8
AR07 IN15 IN14 IN13 IN12 IN11 IN10 IN9 IN8 IN15 IN14 IN13 IN12 IN11 IN10 IN9 IN8