Emerson 8700 Series, Reference Manual

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Reference Manual
00809-X0100-4793, Rev CA
August 2004
4-13
Rosemount 8742C
Simulation
Simulation replaces the channel value coming from the transducer block for
testing purposes.
The following procedure is used to simulate a DI output.
To change the output value place the Target Mode of the block to Manual
and then change the OUT_D.VALUE to the desired value.
To simulate both the value and status do the following:
1. If the Simulate Switch is in the OFF position, move it to ON. If the
Simulate switch is already in the ON position, you must move it to Off
an place it back in to the ON position.
NOTE
As a safety measure, the switch must be reset every time power is interrupted
to the device in order to enable SIMULATE. This prevents a device that is
tested on the bench from getting installed in the process with SIMULATE still
active.
2. To change both the OUT_D.VALUE and OUT_D.STATUS of the DI
Block, set the TARGET MODE to AUTO.
3. Set SIMULATE_D.ENABLE_DISABLE to ‘Active’.
4. Enter the desired values for SIMULATE_D. SIMULATE_VALUE and
SIMULATE_D. SIMULATE_STATUS.
If errors occur when performing the above steps, be sure that the SIMULATE
jumper has been reset after powering up the device.