Manual parameterization and configuration
56
A00760_09_E00_00
HBM: public
ML77B
9
Measured value and channel sta
tus for subchannels 29-32 (like
byte 2)
11.2.5 Subsequent configuration bytes for the ML77B
The output data can only be configured for the individual module. If several
ML77B modules are available in the MGCplus, the output data of the individual
ML77Bs must be configured in the particular configuration applicable in each
case.
If the measurement data is read out in 32‐bit format, configuration bits 0..7 are
used. For 16‐bit format, configuration bits 8..15 are used. It is not possible to
mix the two formats within one ML77B configuration.
As from firmware version P2.00, the option will be available to supply up to 128
measured values as output data from the Profibus to the MGCplus. The ”24‐bit
multichannel mode” or ”16‐bit multichannel mode” bits are set for this. When
operating in ”24‐bit multichannel mode”, 2 words must be reserved for each
subchannel of the ML77B; in ”16‐bit multichannel mode”, 1 word for each sub
channel. The number of subchannels in the ML77B must match the setting
chosen in the configurator (there must be sufficient subchannels!), otherwise
the configuration will be rejected. Firmware versions < P2.00 generally reject
the configurations for this mode of operation.
Multichannel mode byte 1, bit 7 or byte 2, bit 7 can only be selected as an alter
native to single‐channel mode. That is to say, if bit 7 is set, all the other bits 0
must be zero and vice versa.
Configuration
manufacturer‐
specific data
Length of
cyclical
data inputs
Length of cy
clical data
outputs
Content of cyclical data
Byte
no.
Bit no.
(Words)
(Words)
Output data
1
0
3
3 bytes in gross, 3 bytes in net
signal of ML77B
1
1
3
3 bytes in PV1, 3 bytes in PV2
signal of ML77B
