Process Image; Overview - WAGO 750-645 Manual

36 • 750-645 [2AI/2DO VIB VRMS/SPM Multi]

Process Image

4.1.1.7 Process Image
The 750-645 I/O module provides the fieldbus coupler/controller 12 byte input
and output process image via 4 logical channels.
The measuring values for channel 1 are transmitted via the data bytes D0 and
D1, or D4 and D5, respectively, and the measuring values for channel 2 are
transmitted via the data bytes D2 and D3 or D6 and D7, respectively. The
status messages for channel 1 are transmitted via the status bytes S0 and S2,
whereas the status messages for channel 2 are transmitted using status bytes
S1 and S3.
Please note
Mapping the process data of some I/O modules or their variations into the
process image is specific for the fieldbus coupler/controller used. You will
find both this information and the specific configuration of the relevant
control/status bytes in the section on "Fieldbus Specific Configuration of
Process Data" which describes the process image of the particular
coupler/controller.

4.1.1.7.1 Overview

S0
D0
D1
S1
D2
D3
S2
D4
D5
S3
D6
D7
Input Data
Status byte S0
Channel 1 RMS Vibration force
[mm / s x 10] (LSB)
Channel 1 RMS Vibration force
[mm / s x 10] (MSB)
Status byte S1
Channel 2 RMS Vibration force
[mm / s x 10] (LSB)
Channel 2 RMS Vibration force
[mm / s x 10] (MSB)
Status byte S2
Channel 1 SPM Peak [dBsv]
Channel 1 SPM Carpet [dBsv]
Status byte S3
Channel 2 SPM Peak [dB
Channel 2 SPM Carpet [dB
Output Data
C0 Control byte C0
D0 reserved
D1 reserved
C1 Control byte C1
D2 reserved
D3 reserved
C2 Control byte C2
D4 reserved
D5 reserved
C3 Control byte C3
] D6 reserved
sv
] D7 reserved
sv
WAGO-I/O-SYSTEM 750
I/O-Modules