GE 8030-CE-RH Intrinsically Safe Carrier extender, right hand
HAZARDOUS AREA SPECIFICATION
Protection Technique.....................................EEx nA [nL] IIC T4
Location (FM and CSA) ............Class 1, Div.2, Grps A,B,C,D T4
(CSA with non-incendive field terminal, subject to conditions in CSA
certificate.)
FM non-incendive field wiring parameters (each channel)
..............................................................Voc = 28.7V; Isc = 33mA
Gas groups A, B ..................................Ca = 0.17µF; La = 11mH
Gas group C ........................................Ca = 0.51µF; La = 33mH
Gas group D ........................................Ca = 1.36µF; La = 88mH
POWER SUPPLIES
System Power Supply......................50mA (typical), 70mA (max.)
Bussed Field Power Supply
..........................350mA (2-wire TX max.), 110mA (4-wire TX max.)
MECHANICAL
Module Key Code ..................................................................A1
MODULE WIDTH ..............................................................42mm
WEIGHT ..............................................................................200g
For recommended and compatible Field Terminals, see
Field Terminal - Specification and Selection Guide.
General
The SafetyNet Discrete Input/Output
Module provides the interface to 8
channels that may be configured in any
combination of discrete inputs and
outputs.
The SafetyNet Discrete Input/Output
Module is certified for use in safety related applications up to SIL 2. In such
applications the module is used with the
8851-LC-MT SafetyNet Controller and
8810-HI-TX SafetyNet Analogue Input
Module with HART.

Combined inputs and
outputs
Each of the 8 channels of the SafetyNet
Discrete Input/Output Module may be
configured, on a channel-by-channel basis,
as either an input or an output.
When configured as an input, the channel is
suitable for use with dry contacts – with
power supplied from the Module.
When configured as an output, the channel
is capable of switching up to 2.0A
(maximum of 6.0A continuous per module).
Output channels are used with solenoids,
valves and alarms
Diagnostics
Comprehensive diagnostic tests are
performed on the module and each of its
channels, including tests for stuck ON and
stuck OFF output switches.
Live maintenance
The field wiring connections to the SafetyNet
Discrete I/O Module are classified as non sparking and can only be worked on in a
Class 1, Division 2 or Zone 2 hazardous
area once the Bussed Field Power
connection has been isolated.
Note: the Bussed Field Power connection
must also be isolated before removing or
replacing the module.
Input configuration
Input channels are used to interface to volt
free contacts. Line fault detection can be
turned OFF or can detect open circuits or
both open and short.
Input filtering
A change in the input state is recorded only
if the states observed at the start and end of
the filter time interval are the same. If they
are different the previous state is
maintained. (This reduces the chance of
noise being incorrectly interpreted as a
change of input value).
The filter time interval can be configured
between 0 and 8s, in 1ms intervals.
Input transition counting
A counter can record the number of filtered
transitions of a particular type. Depending
on the polarity setting, the counter will either
count transitions from 0 to 1, or from 1 to 0.
The counter “wraps around” from 65 535 to
zero without indication.
Transitions are counted even if the channel is
configured to “latching”.
Earth leakage detection
Where earth leakage fault detection is
required, a single channel of an 8811-IO DC module must be configured to monitor
earth leakage and wired to the appropriate
terminals of an 8751-CA-NS Controller
Carrier.
Input latching
Inputs can be configured to “latch” a
particular (filtered) input transition and
maintain the output in the latched state until
the latch is cleared. “Normal Polarity” will
latch a transition from 0 to 1 as 1, “Inverse
Polarity” will latch a transition 1 to 0 as 0.
The operation is described in figure 1.