107
Analog Input Units Section 5-1
Components
DIP Switch Settings The following diagram shows the functions of the DIP switch.
The following table summarizes the DIP switch settings. (All pins are factory-
set to OFF.)
PWR Indicator
Internal power being supplied: Lit green
No internal power supply: Not lit
U.ERR Indicator
Unit error: Lit red
Unit normal: Not lit
DIN Track Mounting Hook
DIP Switch
Pins 1 to 12: Input range
Pin 13: Averaging
Pin 14: Number of inputs (4/8)
Pin 15: Reserved for system use (OFF)
Pin 16: Software setting enable/disable
I/O Unit Interface
Communications Connector 1
(on the Communications Unit side)
TS Indicator
Shows the communications status of the I/O Unit interface.
Normal communications: Lit green
I/O Unit interface error: Lit red
During initialization, or with no power supply: Not lit
I/O Unit Interface
Communications Connector 2
(on the terminator side)
Analog Input Connectors
(made by MOLEX)
Connect to analog input devices.
Internal Power Supply Terminals
(Refer to page 200.)
(Refer to page 201.)
(Refer to page 107.)
Pin(s) Function Settings Meaning
1 to 12 Input range “Input Range Settings” (see below)
13 Averaging (refer to
page 111)
OFF No averaging is performed. (factory-
set)
ON Averaging is performed.
14 8-point/4 inputs
switching (refer to
page 111)
OFF 8 inputs (factory-set)
ON 4 inputs (inputs 0, 2, 4, and 6 are
enabled)
15 Reserved for sys-
tem use
OFF Must be set to OFF. (factory-set)
16 Software setting
enable/disable
OFF Set the input range with pins 1 to
12. (factory-set)
ON Input range setting using the Config-
urator (see note) is enabled.
Input range Operation specifications
• Averaging
• Switching between 4 and 8 inputs.
• Software setting enable/disable
ON
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