Rice Lake CB-2 Concrete Batch Controller Version 1.0 - Manual (Page 15)

Installation 11
2.4 Digital I/O
Digital inputs can be set to provide many batching functions on the CB-2. Digital inputs are active low (0 VDC),
inactive high (5 VDC).
Digital outputs are typically used to control relays that drive other equipment. Outputs are designed to sink,
rather than source, switching current. Each output is a normally open collector circuit, capable of sinking 24 mA
when active. Digital outputs are wired to switch relays when the digital output is active (low, 0 VDC) with
reference to a 5 VDC supply.
Table 2-5 shows the pin assignments for connector J2 which is located on the CB-2 CPU board.
Digital inputs and outputs are configured using the DIG I/O menu. See Section 3.1 on page 17 for configuration
information.Table 2-6 through 2-9 lists the digital I/O channels and their pre-defined functions for the CB-2.
J2 Pin J2 Signal Function
1 +5 VDC
2 GND
3 DIO 1 Emergency Stop
4 DIO 2 Manual Mode
5 DIO 3 Remote Start
6 DIO 4 Remote Pause
Table 2-5. J2 Pin Assignments (Digital I/O) on CB-2 Main Board
Digital I/O Location Type Description Terminal # Setpoint
Slot 3 Bit 1 Digital Output Aggregate 1 Batch 3-1 SP1
2 Aggregate 2 Batch 3-3 SP2
3 Aggregate 3 Batch 3-5 SP3
4 Aggregate 4 Batch 3-7 SP4
5 Aggregate 5 Batch - Option 3-9 SP5
6 Aggregate 6 Batch - Option 3-11 SP6
7 Aggregate 7 Batch - Otion 3-13 SP7
8 Aggregate 8 Batch - Option 3-15 SP8
9 Aggregate Discharge Open 3-17
10 Aggregate Discharge Closed 3-19
11 Aggregate Vibrator 3-21
12 Sand Bin Vibrator 3-23
13 Cement 1 Batch 3-25 SP9
14 Cement 2 Batch 3-27 SP10
15 Cement 3 Batch 3-29 SP11
16 Cement 4 Batch 3-31 SP12
17 Dust Collection 3-33 SP13
18 Alarm/Horn 3-35 SP14
19 Aggregate Conveyor Start 3-37 SP15
20 Aggregate Conveyor Stop 3-39 SP16
21 Cement Discharge Open 3-41
22 Cement Discharge Closed 3-43
23 Cement Vibrator 3-45
24 Weigh Hopper Aeration 3-47
Table 2-6. Digital I/O Pin Assignments for Slot 3