E-T-A ControlPlex CPC12 T Series, User Manual

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8 Cyclical I/O data
Depending on the selected Module in slot 2. sub-slot 2, a varying number of data bytes are exchanged in the cyclical data traffic.
The GSDML file made available for the projecting tool allows the related configuration, the system recognises all permitted con-
figurations and processes the cyclical data defined in the projection.
The module I/O data CPC12 controller is firmly pre-set in slot 2 and cannot be removed because the input bytes hold vital failure
and diagnostic information as described in the following.
8.1 Module I/O data CPC12 controller
The 2 bytes input data contain the following global error and diagnostic messages.
This module holds 2 bytes output data which are meant for the later system extensions and which cannot currently be used.
8.2 Module power distribution
This module holds the total current in sub-slot 1 and the cyclical input and output data of the circuit protectors in sub-slot 2.
8.2. 1 Submodule total current
The sub-module total current supplies a standardised 16 bit value with the calculated total current of all circuit protectors in a slot
(2 byte input data).
The sub-module does not have output data.
The measuring value is indicated as follows:
byte Type range Description
status controller 0 HighByte
1 LowByte UInt16 0xFFFF bit 0 = no configuration data available
bit 1 = invalid configuration data
bit 2 = connected device type is not compatible to configuration
bit 3 = reserve
bit 4 = command buffer overflow
bit 5 = no communication to
ELBus ®
1
bit 6 = reserve
bit 7 = reserve
bit 8 = reserve
bit 9 = CPC temporary error
bit 10 = CPC hardware error
bit 11 =
ELBus ®
1
communication speed: 0=9600 Baud, 1=19200 Baud
bit 2 = reserve
bit 3 = reserve
bit 4 = reserve
bit15 = writing access via web server deactivated = 1, allowed = 0
byte Type range Description
Total current 0 HighByte
1 LowByte UInt16 0 ... 65535 A standardised 16-bit-value with a resolution of 10 mA is made
available.
Example for calculation of the measuring value:
value (1320)/ 100 =^13.20 Amps
fig. 10: Cyclical diagnostic data CPC12
fig. 11: Total current