Spectrum Controls 1762sc-IF4OF4 - Manual (Page 9)

MicroLogix™ Combo Analog Input/Output Module 16
Publication 0100161-01 Rev. B
This table describes the channel specific configuration registers that are individually
selectable for channels 6 and 7.
To Select
Make these bit settings
7 6 5 4 3 2 1 0
Filter Frequency
(Ignored if Display CJC)
17 Hz 0 0
4 Hz 0 1
62 Hz 1 0
470 Hz 1 1
Data Format
Engineering Units X1 0 0
Engineering Units X10 0 1
Raw/Proportional Data 1 0
Scaled for PID 1 1
Input Type
4 to 20 mA 0 0 0 0
0 to 20 mA 0 0 0 1
-10 to 10 V 0 0 1 0
0 to 10 V 0 0 1 1
1 to 5 V 0 1 0 0
0 to 5 V 0 1 0 1
Type J TC 0 1 1 0
Type K TC 0 1 1 1
Type E TC 1 0 0 0
Type T TC 1 0 0 1
Display CJC channel temp 1 0 1 0
Reserved 1 0 1 1
Reserved 1 1 0 0
Reserved 1 1 0 1
Reserved 1 1 1 0
Channel Disabled 1 1 1 1
MicroLogix™ Combo Analog Input/Output Module 9
Publication 0100161-01 Rev. B
Wiring
Grounding the Module
Grounding for this product is provided by the MicroLogix™ 1100, 1200 or 1400
CPU via the bus ribbon cable. Refer to Industrial Automation Wiring and Grounding
Guidelines, Allen-Bradley publication 1770-4.1, for additional information.
System Wiring Guidelines
Consider the following when wiring your system:
 The analog common (COM) is not connected to earth ground inside the
module. All terminals are electrically isolated from the system.
 Output channel returns are common
 Input channel to channel isolation is limited to ±13 VDC from the output
return voltage.
 Use Belden™ 8761, or equivalent, shielded wire.
 Under normal conditions, the drain wire (shield) should be connected to
the metal mounting panel (earth ground) as close to the module as
possible. Keep the shield connection to earth ground as short as possible.
 To ensure optimum accuracy for voltage type inputs, limit overall cable
impedance by keeping all analog cables as short as possible. Locate the
I/O system as close to your voltage type sensors or actuators as possible.
 The 1762sc-IF4OF4 module does not provide loop power for analog
inputs. Use a power supply that matches the input transmitter
specifications.
 Digital and analog power must be supplied by an Isolated Secondary
Limited Energy Low Voltage source.
 Use supply wires for 20˚ C above surrounding ambient.