Instruction manual

Instruction Manual
760006-A
September 2001
Rosemount Analytical Inc. A Division of Emerson Process Management Appendices 11-31
Model NGA 2000 Platform
11-3 LOCAL I/O MODULE
Description
The Local I/O module, also called an SIO
board, is a circuit card that plugs into the rear
of the Platform. However unlike the other I/O
modules it itself contains no processing
power, it merely allows the computer in the
Platform to control various I/O functions.
The functions provided are as follows:
• Dual channel analog output
• Optional analog output sub-
modules for up to eight channels
• RS-232 or RS-485 optional out-
put sub-modules
• Three programmable relays.
The analog outputs can be assigned to one of
many optional readings from any Analyzer
module connected to the Platform. The relays
can be assigned to any of a number of dis-
crete signals from any Analyzer module con-
nected to the Platform.
The RS-232 or RS-485 outputs can support
either Modbus or AK, and can be used to
communicate to any Analyzer connected to
the Platform.
Menus controlling the operation of the local
I/O module can be found under Expert con-
trols and setup…, Auxiliary module setup…,
Local I/O module…
NOTE
V2.2 Platform software supports
only the analog output and a limited
version of AK on the local I/O mod-
ule. V2.3 Platform software supports
the features mentioned here.
Binding
Since the local I/O module is not a LON mod-
ule as are the other I/O modules and Analyz-
ers, it is not bound to the Analyzers in the
same way.
Instead, tell the Platform that the Local I/O
module is installed, and then assign its out-
puts to the signals desired.
Installation
If the Local I/O Module is received as a sepa-
rate unit, carefully examine the shipping car-
ton and contents for signs of damage.
Immediately notify the shipping carrier if the
carton or contents is damaged. Retain the
carton and packing material until all compo-
nents are operational.
Verify that any optional sub-modules have
been installed. These include the RS-232 or
RS-485 module, and any additional analog
output modules.
To install the Local I/O Module, perform the
General Installation Procedure in Section 2-6.
Setup
1. Enter Expert controls and setup…
2. Enter Auxiliary module setup…
3. Enter Local I/O module…
4. Edit Module installed: to Yes
5. Enter Analog output setup…
6. Edit Output number to the channel de-
sired
7. Enter Select source module…
8. Select the Analyzer source for this output
channel
9. (The previous menu will automatically ap-
pear)
10. Enter Select Signal…
11. Select the Analyzer signal for this output
channel
12. (The previous menu will automatically ap-
pear)
13. Setup the output range of the signal as
desired