Range Switching Function - Mitsubishi Electric R60AD8-G User Manual

1.2

Range Switching Function

This function allows switching the input range of an analog input for each channel.
Switching the range makes it possible to change the I/O conversion characteristic.
Operation
Analog input values are converted to digital values within the set input range, and the converted values are stored in the
following areas.
• 'CH1 Digital output value' (Un\G400)
• 'CH1 Digital operation value' (Un\G402)
• 'CH1 Digital output value (32 bits)' (Un\G410, Un\G411)
The data of 32768 or more cannot be output to 'CH1 Digital output value' (Un\G400) or 'CH1 Digital operation value'
(Un\G402).
To check the data of 32768 or more, monitor 'CH1 Digital output value (32 bits)' (Un\G410, Un\G411).
Digital output values (32768 to 36767) in the extended mode can be monitored within the range of 'CH1 Digital
operation value' (Un\G402) with the shift function or scaling function.
For details, refer to the following.
Page 51 Shift Function
Page 26 Scaling Function
Setting procedure
Set the input range to be used in the "Input range setting".
[Navigation window]  [Parameter]  [Module Information]  Module model name  [Module Parameter]  [Basic
setting]  [Range switching function]
Input range setting
4 to 20mA
0 to 20mA
1 to 5V
0 to 5V
-10 to 10V
0 to 10V
4 to 20mA (extended mode)
1 to 5V (extended mode)
User range setting
After the data is written, the range is switched when the programmable controller power supply is turned off and on or when
the CPU module is reset.
The range can be switched or set with the following buffer memory areas.
• 'CH1 Range setting' (Un\G598)
• 'CH1 Range setting monitor' (Un\G430)
For details on the buffer memory addresses, refer to the following.
Page 195 CH1 Range setting
Page 159 CH1 Range setting monitor
Precautions
The input range cannot be changed for channels with A/D conversion disabled. To change the input range, set "A/D
conversion enable/disable setting" to "A/D conversion enable".
1 FUNCTIONS
20
1.2 Range Switching Function
Digital output value
0 to 32000
-32000 to 32000
0 to 32000
-8000 to 36000
-32000 to 32000