Instruction manual

Instruction Manual
760006-A
September 2001
Rosemount Analytical Inc. A Division of Emerson Process Management System DIO Module 5-1
Model NGA 2000 Platform
SECTION 5
SYSTEM DIO MODULE
5-1 OVERVIEW
The DIO module is an optional card that plugs
into the platform. Since it is not part of the
LON network, it does not require binding but it
must be configured to assign the desired
Analyzer module and module signal to the
various outputs. Up to 4 DIO modules can be
installed per platform. Each DIO module con-
tains 24 assignable digital outputs and 8 as-
signable digital inputs.
The 24 digital outputs are comprised of 3 cir-
cuits with 8 outputs each. If there is a short
circuit or overload in any one group of out-
puts, the group will be disabled to protect
against damage. After the overload is re-
moved the output group can be restored by
manually resetting.
PIN
SIGNAL PIN SIGNAL
1 Output 1 20 Output 20
2 Output 2 21 Output 21
3 Output 3 22 Output 22
4 Output 4 23 Output 23
5 Output 5 24 Output 24
6 Output 6 25 Input 1
7 Output 7 26 Input 2
8 Output 8 27 Input 3
9 Output 9 28 Input 4
10 Output 10 29 Input 5
11 Output 11 30 Input 6
12 Output 12 31 Input 7
13 Output 13 32 Input 8
14 Output 14 33 Ground (1-8, inputs)
15 Output 15 34 Ground (9-15)
16 Output 16 35 Ground (16-24)
17 Output 17 36 Summary Failure: Short circuit
18 Output 18 37 Failure: Timeout or Reset
19 Output 19
Table 5-1. System DIO Signal/Pin Output