Slow-Control Hardware


There are 2 National Instruments MIO-PCI-6034E DAQ-Cards currently installed on PC620.
( Full National Instruments Manual for the 6034E DAQ-Card ).
With the Measurement and Automatization Explorer Program they can be configured and tested.

DAQ-Card1 which reads in the SC-2042 RTD Port is configured in differential mode (DIFF).
DAQ-Card2 which reads in the wire-terminal port is configured in ground referenced single-ended mode (RSE).

These DAQ Cards are connected via 2 flatband 64 pin cables to the MuCAP Slow-Box





The slow box contains two terminal ports;


1)  The NI SC-2042 RTD port:  

National Instruments Manual for the SC-2042 RTD card.




This card is ment to drive temperature dependent resisistors with a 1 micro-amp current for temperature measurements.
Presently 6 of the differential inputs are selected for temperature measurements (2-5), input ch0 and ch1 are used for the magnetic field measurement with Hall-probes. The +5V to drive the Hall-probes are taken from the PC voltage supply.

2 of the RTD and the 2 Hallprobes are connected via the 3 outside plugs.


There is one spot left for an additional RTD. The way it plugs in is for a RTD with 3 wires (1 sense wire):
Put  the 2 opposite wires from the RTD into IX7+, and IX7- , which is the current source, put the sense wire in the ch7+ and connect the ch7- with the IX7-


2) The NI wire-terminal port





The wire terminal port directly connects the input voltage to the DAQ card. It can read voltages between +- 10 V with the other side connected to the ground. The mapping of the ports is given as following:




Presently connected are:

ch0: The outpur of the piezo-pressure meter to measure the pressure / gas flow in the ePC gas line

ch1: The output of the hydrogen pressure gauge which is taken from the backside of the digital display. It supplies a pressure related current which is monitored via a 500 Ohm resistor.

The digital pressure display which serves as power supply and current monitor for the pressure gauge.


There are 14 channels more to be used.