VM600 MPS hardware manual (standard version) MAMPS-HW/E 4 - 13
Edition 17 - February 2018
Inputs and outputs
MPC4 / IOC4T CARD PAIR
4.4.4 DC outputs (IOC4T)
Four DC outputs (DC OUT 1, DC OUT 2, DC OUT 3 and DC OUT 4) are available on the
IOC4T card. These can output fully-processed values from single or dual channels.
Jumpers allow each of these outputs to be individually set to provide a current-based or a
voltage-based signal, that is, the specified DC output signal range can be either 4 to 20 mA
or 0 to 10 V. Outputs are configured using the VM600 MPS software. For example, a
4 to 20 mA DC output corresponding to a 0 to 500 µm
signal.
The actual value of a DC output can go outside the specified output signal range, depending
on the processed value (signal). For example, if the configured 0 to 500 µm
signal actually
goes from î›25 to 525 µm, the output signal should remain linear outside of the specified DC
output signal range (up to the circuitry limits of approximately 0 to 23.1 mA and
î›2.5 to 11.9 V).
The DC outputs (DC OUT 1, DC OUT 2, DC OUT 3 and DC OUT 4) share a common
reference/return with the discrete signal interface (DSI) inputs (AR, DB and TM). This
common reference/return is known as RET and is available on Connector J3, Terminal 8
(see 9.5 Configuring the four DC outputs and 9.7 DSI control inputs (DB, TM, AR)).