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14
4–20mA Input Expansion
0(4)–20mA Process inputs (Ch 1–16)*
*
These are additional to the 2x Process analog
inputs (A & B) that come with the base unit
Input voltage 24V DC max
Input impedance 50Ω
Input resolution 16 bits
Accurate to < 0.1% FSO
Isolation A common ground is shared bet-
ween groups of four process input signals.
(E.g. CH1/CH1_SEC + CH2/CH2_SEC).
The common reference is isolated to the
main controller ground and all other
isolated inputs and outputs, to a max
working voltage of 50V DC
Isolation test voltage 1500V AC, 2 seconds
G3 IoT Manual | Doc No: 2303-00000-0-1 | Rev: 24V05 | 19 Mar, 2024
P 8, P 16
Digital I/O
Expansion
Digital open collector outputs Outputs
are separated into isolated groups of 16
channels. 0.5A max per channel, 4A max
total per group
Bipolar digital inputs +/-11–25V DC
1.6mA typ @12V, 3.5mA typ @24V
Inputs are separated into 2 isolated groups
of 8 channels per 16 channel module
Power supply User to supply an 11–25V DC
SELV/PELV Class III* UL rated power supply
(or supplies) to power digital inputs and
supply digital outputs
*
Class III Equipment: See Appendix E.1
Over voltage protection 30V DC max
Isolation Max 50V DC working voltage
between user supplied supply, and digital
ground of controller and any isolated inputs
or outputs
Isolation test voltage 1500V AC, 2 seconds
DO8, D 16,
DO16–D 16, DO32–D 32
© 2024 Define Instruments
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