Pickering PXI 40-145, User Manual

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Page 4.3
HIGH DENSITY RELAY MODULES 40-145/146/148
pickering
SECTION 4 - PROGRAMMING GUIDE
MODULE ARCHITECTURE - 40-145 NORMALLY OPEN VERSIONS
One sub-unit is used to control all the module’s relays as shown below. Enabling a particular bit closes the C to A
signal path.
40-145-001 (50 x SPST)
The 40-145-001/101/201 are arrays of 50, 75 or 100 uncommitted SPST relays. In the default state, all signal paths
are open, energising a particular relay creates a signal path between the C and A terminals. The relay module’s
switching architectures are shown in their default state in the diagram below:
40-145-101 (75 x SPST)
A50
C50
A2
C2
A1
C1
A100
C100
A4
C4
A3
C3
A2
C2
A1
C1
A75
C75
A3
C3
A2
C2
A1
C1
Sub-Unit Bit
40-145-001 Signal Path
(with relay energised)
40-145-101 Signal Path
(with relay energised)
40-145-201 Signal Path
(with relay energised)
1 1 C1 to A1 C1 to A1 C1 to A1
1 2 C2 to A2 C2 to A2 C2 to A2
1 3 C3 to A3 C3 to A3 C3 to A3
1 4 C4 to A4 C4 to A4 C4 to A4
1 49 C49 to A49 C49 to A49 C49 to A49
1 50 C50 to A50 C50 to A50 C50 to A50
1 51 — C51 to A51 C51 to A51
1 52 — C52 to A52 C52 to A52
1 74 — C74 to A74 C74 to A74
1 75 — C75 to A75 C75 to A75
1 76 — — C76 to A76
1 77 — — C77 to A77
1 97 — — C97 to A97
1 98 — — C98 to A98
1 99 — — C99 to A99
1 100 — — C100 to A100
40-145-201 (100 x SPST)
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