Micronor MR340-1, Инструкция по эксплуатации

Страница: 48 / 74

MICRONOR AG MR340-1 DIN Rail Module Controller
Page 48 of 74
MODBUS commands:
Counter Reset Mode (Register 0x208)
Register Address: 0x208
The internal Position Counter may be reset by applying a +24V signal to the Counter RESET
Input located on pin 3 of J1.
This input assumes different functions depending on the setting as described below:
The register value is binary coded:
Bit 0 = Reset Counter to the Preset value stored in parameter 0x209
Bit 1 = Activate Optical Calibration when input goes high
Bit 2 = Activates Transmitter Balancing when input is raised high
The bits are logically OR’d and all or none of the above functions apply when the external
input goes high/
Modes Description
000b No action with rising edge of external input
001b RESET encoder counter to Preset value stored in parameter 0x209
011b Reset encoder counter and initiate a calibration cycle.
This maybe a useful function in conjunction with a linear filmstrip encoder.
When the sensor is at a known position in the homing area of the film strip.
The counter can be set to a known position value and at the same time the
optical amplitude is adjusted.
MODBUS commands:
Address Register Description Access
0x204 1 Current Mode Read/Write
0x205 2 Current Scale Read/Write
0x207 1 Current Filter Read/Write
Address Register Description Access
0x208 1 Reset Mode Read /
Write