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VersaMax® Modules, Power Supplies, and Carriers User's Manual – March 2003
GFK-1504K
11
IC200ALG328
Analog Output Module, 13 Bit Current, 12 Channels
Jumper Selection
Range Jumper
If no jumper is installed the output current range will be 4 to 20 mA. With a jumper
installed the output current range is 0 to 20 mA. This should only be changed with field
power and backplane power removed. The corresponding parameter in the hardware
configuration must also be adjusted accordingly.
Range Jumper
Default
None
4 to 20 mA
JMP 1
0 to 20 mA
Hold Jumper
If no jumper is installed outputs hold their last states (the last commanded values from the
backplane) if backplane power or communications are interrupted or the PLC is stopped.
With a jumper installed, if such conditions occur outputs default to 0/4mA. This should
only be changed with field power and backplane power removed. The corresponding
parameter in the hardware configuration must also be adjusted accordingly.
Hold Jumper
Default
None
Hold Last State
JMP 2
0/4mA
The “Default Low End of Range” value can be either 4mA or 0mA. The default depends
on the PLC status, output current range selected, and whether the module is controlled by a
VersaMax PLC CPU or a Network Interface Unit (NIU) module. In some cases, the
module will output 0mA instead of 4mA, even when configured for the 4-20mA range as
shown in the following chart.
Module Set to Default
Low End of Range (Default)
Module Set to
Hold Last State (HLS)
Action
Module in NIU Rack
Module in CPU
Rack
Module in NIU
Rack
Module in CPU
Rack
0-20mA
0-20mA
4-20mA 0-20mA 4-20mA 4-20mA 0-20mA 4-20mA
Run to Stop
0mA
0mA
4mA
0mA
HLS
HLS
HLS
HLS
Loss of Field Power
0mA
0mA
0mA
0mA
0mA
0mA
0mA
0mA
Loss of Backplane Power
0mA
0mA
0mA
0mA
HLS
HLS
HLS
HLS
Loss of Communication
0mA
0mA
4mA
N/A
HLS
HLS
N/A
N/A
Loss of Module
0mA
0mA
0mA
0mA
0mA
0mA
0mA
0mA
Loss of CPU/NIU Power
0mA
0mA
0mA
0mA
HLS
HLS
HLS
HLS
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