Chapter 3 - Setup
3-3
About Blind Units
An HI 2151WC Weight Controller that cannot be programmed or con-
figured from the front panel is a blind unit. In a blind unit, the Remote
I/O parameters are configured using both the interior and exterior dip
switches. (See Tables below)
NOTE:
You must power-down and power up the instrument to have new switch positions acti-
vated. You must also perform a manual or auto configuration of the PLC.
Blind Unit
Configuration
Step 1. Disconnect the power cord from the instrument.
Step 2. Set the Interior Dip Switches. (See Table 3-1)
ON = 1
OFF = 0
NOTE:
Remember to select the appropriate jumper positions on the Remote I/O Option
Board.
INTERIOR DIP SWITCHES
Switch Position - S2 which is located
on the Power/Relay board
1
n/u
2
n/u
3
n/u
4
n/u
5
last quarter in rack
ON = Yes
OFF = No
6
Blind Unit
ON = Yes
OFF = No
7
A1 (See Binary
Baud Rate Table
3-1)
8
A0 (See Binary
Baud Rate Table
3-2)
TABLE 3-1: INTERIOR DIP SWITCHES
BINARY BAUD
RATE
A1
A0
BAUD
0
0
57.6K
0
1
115.2K
1
0
230.4K
TABLE 3-2:
