Pickering 40-290-021, Руководство пользователя

Страница: 26 / 44

Page 4.3
PROGRAMMABLE RESISTOR MODULES 40-290/291
pickering
SECTION 4 - PROGRAMMING GUIDE
MODULE ARCHITECTURE 40-290-121
Three sub-units of 16 bits are used to control the module’s relays as shown below. Enabling a particular bit closes
the C to A signal path of that relay.
40-290-121 (3 16xSPDT)
The 40-290-121 Module utilises 32 SPST relays, and 16 SPDT changeover relays. In the default state all signal
paths are open circuit for the SPST relays with all resistors linked in the chains, and between the C and B terminals
for the changeover relays. Energising any relay creates a signal path between the C and A terminals of that relay.
As the SPST relays are energised the corresponding resistor is short circuited. The relay module’s switching
architecture is shown in its default state in the diagram below:
Resistor
Chain 1
Relays may be connected
to the resistors using
internal wire jumpers
Resistor
Chain 2
16 x SPDT
Reed Relays
R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R off
R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R off
SW1 SW2 SW3 SW4 SW5 SW6 SW7 SW8
SW9 SW10 SW11 SW12 SW13 SW14 SW15 SW16
A C
SPST Relay
Connections
A
C
B
SPDT Relay Connections
Changeover Relays (SPDT)
Sub-Unit Bit 40-290-121 Signal Path
(with relay energised)
3 1 C1.3 to A1.3
3 2 C2.3 to A2.3
3 3 C3.3 to A3.3
3 4 C4.3 to A4.3
3 5 C5.3 to A5.3
3 6 C6.3 to A6.3
3 7 C7.3 to A7.3
3 8 C8.3 to A8.3
3 9 C9.3 to A9.3
3 10 C10.3 to A10.3
3 11 C11.3 to A11.3
3 12 C12.3 to A12.3
3 13 C13.3 to A13.3
3 14 C14.3 to A14.3
3 15 C15.3 to A15.3
3 16 C16.3 to A16.3
Chain Sub-Unit Bit 40-290-121 Signal Path
(with relay energised)
Associated
Resistor
PCB
Resistor
1
1 1 C1.1 to A1.1 R1 R17
1 2 C2.1 to A2.1 R2 R18
1 3 C3.1 to A3.1 R3 R19
1 4 C4.1 to A4.1 R4 R20
1 5 C5.1 to A5.1 R5 R21
1 6 C6.1 to A6.1 R6 R22
1 7 C7.1 to A7.1 R7 R23
1 8 C8.1 to A8.1 R8 R24
1 9 C9.1 to A9.1 R9 R25
1 10 C10.1 to A10.1 R10 R26
1 11 C11.1 to A11.1 R11 R27
1 12 C12.1 to A12.1 R12 R28
1 13 C13.1 to A13.1 R13 R29
1 14 C14.1 to A14.1 R14 R30
1 15 C15.1 to A15.1 R15 R31
1 16 C16.1 to A16.1 R16 R32
2
2 1 C1.2 to A1.2 R1 R33
2 2 C2.2 to A2.2 R2 R34
2 3 C3.2 to A3.2 R3 R35
2 4 C4.2 to A4.2 R4 R36
2 5 C5.2 to A5.2 R5 R37
2 6 C6.2 to A6.2 R6 R38
2 7 C7.2 to A7.2 R7 R39
2 8 C8.2 to A8.2 R8 R40
2 9 C9.2 to A9.2 R9 R41
2 10 C10.2 to A10.2 R10 R42
2 11 C11.2 to A11.2 R11 R43
2 12 C12.2 to A12.2 R12 R44
2 13 C13.2 to A13.2 R13 R45
2 14 C14.2 to A14.2 R14 R46
2 15 C15.2 to A15.2 R15 R47
2 16 C16.2 to A16.2 R16 R48