MICRONOR AG
MR340-1 DIN Rail Module Controller
Page 50 of 74
Due to the inner workings of the MR340 firmware, the controller can only be set to x2 or x4
multiplication.
This setting will NOT affect speed calculation.
MODBUS commands:
Turn Direction (Register 0x20B)
Register Address: 0x20B
This parameter defines the encoder's rotational direction. When this parameter is set to “0”
(default) all outputs follow the right–hand rule convention. When the encoder turns clockwise
then the speed indication is positive and the position counter increments. Analog outputs
follow accordingly: i.e. a positive speed is indicated by a positive voltage.
When this direction parameter is set to “1”, then all directional outputs are reversed. This may
become useful when an encoder cannot be installed to turn in the CW direction within a
system definition for CW being positive speed or positive position.
Modes
Description
0
Analog outputs and digital read-out follow CW direction
1
Analog outputs and digital read-out are reversed from normal CW
direction
Quadrature outputs A&B are not affected by this parameter setting. The user must assure
proper wiring to achieve the desired direction of an externally connected device.
MODBUS commands:
Address Register Description
Access
0x211
1
Count Multiplier
Read /
Write
Address Register Description
Access
0x20B
1
Direction
Read /
Write