Rice Lake iQUBE2 Digital Diagnostic Junction Box - Manual (Page 16)

12 iQUBE 2 Installation Manual
2.7 Primary/Secondary Wiring and Configuration
An iQUBE 2 system can consist of up to four iQUBE 2 boards, with up to four load cell channels wired to each
board. Standard enclosures can accommodate one or two iQUBE 2 boards; large enclosures allow up to three
iQUBE 2 boards. For control of a multi-board system, one iQUBE 2 board is assigned as the primary unit and the J12
connector (M/S port) is used to provide communication between the primary and up to three secondary units.
Figure 2-3 shows the primary-to-secondary wiring for multiple iQUBE 2 boards. Successive secondary units are
wired in parallel (A to A, B to B, GND to GND) to the J12 connector of each iQUBE 2 board.
The M/S port provides RS-485 communications at approximately 450 Kbps. This port is reserved for
communication between
iQUBE 2 boards. No other devices should be connected to this port.
Figure 2-3. Primary-to-Secondary Communications Wiring
J5 Pin J5 Signal
1 +5V
2 GND
3 I/O 1
4 I/O 2
5 I/O 3
6 I/O 4
Table 2-10. J5 Pin Assignments (Digital I/O)
J12 Pin
Primary
iQUBE 2
Secondary
iQUBE 2
1 iQA iQA
2 iQB iQB
3 GND2 GND2
4 GND2 GND2
Table 2-1. J12 Primary/Secondary Port
Note
GND2 GND2
iQB iQA
J12
CELLS 1 – 4
1
2
3
4
GND2 GND2
iQB iQA
J12
CELLS 5 – 8
5
6
7
8
GND2 GND2
iQB iQA
J12
CELLS 9 – 12
9
10
11
12
GND2 GND2
iQB iQA
J12
CELLS 13 – 16
13
14
15
16
Primary iQUBE²
Secondary
iQUBE² #1
Secondary
iQUBE² #2
Secondary
iQUBE² #3
GND2 GND2
iQB iQA
J12