4.1 Analog Input Specifications
4-7
4
6) External Appearance
LED
Color
State
Indication when ON
RDY
Green
Lit
Module is normal.
Flashing
Initial check error has occurred.
Not lit
WDT timeout error has occurred.
ACT
Green
Lit
Module is processing I/O.
Not lit
CPU Module is in the STOP state or I/O pro-
cessing error has occurred.
ERR
Red
Lit
Overrange was detected at one of the chan-
nels, CH1 to CH4.
Flashing
Parameter check sum error has occurred.
Not lit
Module is normal.
CH 1 to CH 4 Green
Lit
Input signal of indicated channel exceeds the
input signal range shown below.
• +10.12 V < Input signal
• Input signal < -10.12 V
Flashing
Input signal of indicated channel exceeds the
input signal range shown below.
• +10.00 V < Input signal < +10.12 V.
• -10.24 V < Input signal < -10.00 V.
Removable terminal block
for field connections
Hinged terminal cover
Signal label insert
Color code
(light green)
LED area
Module description (120AVI02000)
Module mounting screw
(Use a M4 Phillips screwdriver.)
External wiring terminal
(Use a M3 Phillips screwdriver.)
Terminal block mounting screw
(Use a M3 Phillips screwdriver.)
LED Area
120 AVI 020 00
ACT
CH1
CH2
CH3
CH4
ERR
RDY
