Operating Manual EMGZ470A/472A
16
8.5
Process Data
The amount of process data specified in the configuration is transmitted periodically.
It is distinguished between value, main feedback value, control byte and status byte.
Control byte (STB)
The control byte transmits the required command to the measuring amplifier. (Module
1 only)
Master
→
Slave
STB
HSW
Bit #
7......0
Value
Meaning
Remarks
00h
Default
Normal operating mode
09h
Read Device Type
21h
Read User Offset
23h
Write User Offset
HSW = User Offset to be written
25h
Find User Offset
Measuring value will be set to zero
29h
Read User Gain
2Bh
Write User Gain
HSW = User Gain to be written
2Dh
Calibrate User Gain
HSW = Force value which corresponds to the
actual material tension
F9h Read
Firmware
Version
Main reference value (HSW)
The main reference value transmits the actual parameter value. (Module 1 only)
Master
→
Slave
STB
HSW
Bit #
15......0
The main reference value is a 16 bit word (range ±32767). The high byte is
transmitted before the low byte.
We recommend to set Offset and Gain such that loading the sensor at nominal force
will result in a feedback value of 10000 (default). (ref. to „9. Calibrating the
measuring amplifier“)