User manual

Toolbox 32 User Manual 1.47d www.cse-semaphore.com/mykingfisher
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IO-4 Combination Analog/digital IO Module
The IO-4 module is a combination IO module with 2 analog inputs, 8 digital inputs and 2 digital outputs. The
first analog input is designed to be used with a 4-20mA (or 0-20mA) input or with a strain gauge 0-50mV
input. When used for a strain gauge input, channel 1 can be calibrated to allow for the different strain gauge
characteristics and tolerances of the IO-4's internal components.
There are two hardware versions of the IO-4 module - version 1.2 and version 1.3. The version number is
marked on the top of the printed circuit board and is visible through the side of the case. A different
Hardware Overview window appears in Toolbox for each version as detailed below.
Note: An IO-4 module is supplied with two 4-20mA analog input channels as standard. To use a strain gauge
input on channel 1, the IO-4 must be ordered from Semaphore with this option.
IO-4 Module V1.3
When the Calibrate Ch. O1 button is selected in the IO-4 hardware overview (View, Hardware Overview),
additional buttons and fields are displayed as shown below.
Figure: IO-4 Channel 1 Calibration Window
Calibration Method:
• Select the Reset Calibration button. This will clear the calibration registers in the IO-4 module. If this
operation is successful, the message "Reset Successfully!" will be displayed.
• Select the Enable Calibrate button. This tells the RTU that channel 1 is about to be calibrated.
• Apply the first voltage input to channel 1 (0-50mV).
• Enter the percentage corresponding to this voltage (in the box above the Accept Perc 1 button) and
then select Accept Perc 1.
• Apply the second voltage input to channel 1.
• Enter the percentage corresponding to this second voltage (in the box above the Accept Perc 2 button)
and then select Accept Perc 2.
• Select the Send Calibration button. This will cause the setpoints to be sent to the IO-4 module and then
the message "Calibrate Data Sent Successfully!" will be displayed.
Example Calibration