2-13
Section 2 Specifications
2-4 Functional Specifications
2-4-1 Analog input module functions
(1) Switch batch setting function
With the operation setting switches provided on the module rear panel, it is possible to set the following items for all the
channels in a batch:
Operation range and the unit for digital conversion
Moving average execution times (can be selected from 1, 2, 4 and 8 times).
When the unit of digital output value is set to %, the module operates, regarding
Lower limit value of range as 0.00%,
Upper limit value of range as 100.00%, and
Digital output range as -2.50% to 102.5%.
Note 1: If the Switch Batch Setting function is enabled after scaling values or other parameters have been changed from the
parameter setting window, the changed parameters are not reflected on operation and the parameters return to the
default values.
Note 2: When the switch is set to an invalid value, the status code of “30005” is returned to all the channels.
Note 3: The setting of the switch cannot be checked from application program. Be sure to check the switch setting before the
system is started or before maintenance or replacement is performed.
DD
DD
D For how to set the switch, refer to “2-5 Names and Functions”.
(2) Individual channel operation range setting function
When the operation setting switch on the module rear panel is set to “Software Set Range”, operation range can be set for
individual channel by application program.
(3) Individual channel moving average execution times setting function
When the operation setting switch on the module rear panel is set to “Software Set Range”, moving average execution times
can be set for individual channel by application program. Default is once (sampling operation). Averaging execution times can
be selected from 1, 2, 4 and 8.
Note: The “Average” switch on the module rear panel is disabled.
(4) Individual channel conversion enable/disable setting function
When the operation setting switch on the module rear panel is set to “Software Set Range”, enable/disable of A/D conversion
can be set for individual channel by application program. Default is “enable conversion”.
Sampling time can be reduced by disabling A/D conversion for unused channels. For conversion disabled channels, digital
output value is fixed to 0 (zero).
(5) Individual channel gain/offset value fine adjustment function
When the operation setting switch on the module rear panel is set to “Software Set Range”, gain and offset values can finely
be adjusted for individual channel by application program.
* For the detailed specifications and setting, refer to “4-1-2 (6)”.
(6) Scaling function
When the operation setting switch on the module rear panel is set to “Software Set Range”, the scale for A/D conversion can
be set for individual channel by application program.
* For the detailed specifications and setting, refer to “4-1-2 (6)”.
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