8VZZ000021L320 ABB H&B Contronic
One single CPU is the master on the bus,
all of the other remote units or CPU are considered to be slaves.
The master CPU manages up to a maximum of 31 remote units on one bus.
All messages are terminated with an error check (CRC8).
The format of the messages :
- request from the master CPU
Address Data CRC8
- response from the remote units
Start Data CRC8
During initialization, the central unit interrogates all of the remote units in succession, thus building an image of the system configuration.
On each cycle of the bus all of the remote units are interrogated.
This updates all diagnosis information and recognizes additional remote units.
If the CPU or one of the remote units receives a message with a (CRC8) error, it is ignored.
After ten consecutive transmission errors, an error "Bus error" is generated on the remote units and within the diagnosis of the central unit.
"SPNPM22 "
SS832
TA25 DU 32
TA521
TA524
TB820-2V2
TB850
TB850 3BSC950193R1
TB852
TBU850
TC514V2
TC820-1
TET106 11355-0-6050000
TK212A
TK516
TK851V007
TK851V010
TP830
TP830-1
TPPB-02
TTH300-Y0
TU810V1
TU830V1 3BSE013234R1
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