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2024年7月14日发(作者：)
GFK-2379
March 2005
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IC694MDL660
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PACSystems™ RX3i
IC694MDL660
24VDC 32-Point Positive/Negative Logic Input Module
The 24 VDC Positive/Negative Logic Input module, IC694MDL660, provides 32
discrete input points. The inputs are positive or negative logic inputs and will operate
at levels up to 30V.
The inputs are arranged in four isolated groups of eight; each group has its own
common. Isolation is provided between the four groups of inputs, however each
group of eight inputs is referenced to the same user common connection.
Module MDL660 provides seven selectable input filter times. Filter times can be set
from the programmer using the module’s assigned output data references.
This module can be used with either a Box-style (IC694TBB032) or Spring-style
(IC694TBS032) front Terminal Block. The Terminal Block is ordered separately.
32 green LEDs indicate the ON/OFF status of points 1 through 32. The red/green
TB LED is green when the module’s removable terminal block is locked in place. It is
red when the terminal block is not locked. The module also sends an Addition of
Terminal Block or Loss of Terminal Block message to the RX3i CPU to report the
terminal block status.
The blue bands on the label show that MDL660 is a low-voltage module.
This module can be installed in any I/O slot in an RX3i system. It must be used with
an RX3i CPU (release 2.90 or greater). It cannot be used with a Series 90-30 PLC
CPU.
Module MDL660 uses 48 input bits and 16 output bits to exchange point status and
filter information with the RX3i CPU.
2 RX3i 24VDC 32-Point Positive/Negative Logic Input Module
GFK-2379
Release Information
Release History
Release Comments
IC694MDL660A Initial Release
Known Restrictions and Open Issues in this Release
1. Problem: If the module has corrupted or missing firmware (its LEDs will be OFF), it may still be scanned by the CPU,
and there may be no fault messages to indicate that the module is not operating.
Recommendation: In critical control applications, do not rely solely on diagnostic fault messaging to provide
notification of module inoperability.
2. Problem: Firmware updates may fail before they are completed, leaving the module in a “lights out” condition.
Recommendation: Cycle power to the module and try the firmware update again.
3. Problem: Rarely, hot insertion/removal of the MDL660A module triggers a Loss/Addition of Terminal Block fault
message.
Recommendation: If the terminal block is present and locked, ignore the Loss/Addition of Terminal Block fault
message.
4. Problem: Rarely, after a period of many rapidly-repeated power cycles, the module may go “lights out”.
Recommendation: Avoid multiple power cycles of periods less than 1 second. Also, avoid relay-switching of power to
PLC. (Relays can bounce creating rapid power cycling).
RX3i
24VDC 32-Point Positive/Negative Logic Input Module 3
GFK-2379
Specifications: IC694MDL660
Rated Voltage
Input Voltage Range
Inputs per Module
Isolation, Field to
Backplane (optical)
Isolation, Group to
Group
Input Current
Module ID
Input Characteristics:
On–state Voltage
Off–state Voltage
On–state Current
Off–state Current
Input Filter Times
On response Time
Off response Time
Power Consumption
Diagnostics
24 volts DC
0 to 30 volts DC
32 (four isolated groups of 8 inputs)
250 VAC continuous;
1500 VAC for one minute
250VAC continuous;
1500 VAC for one minute
7.0 mA per point (typical) at rated voltage
0x058h
11.5 to 30 VDC
0 to 5 VDC
3.2mA minimum
1.1mA maximum
0.5ms, 1.0ms, 2.0ms, 5ms, 10ms, 50ms and 100ms,
selectable per module
0.5ms, 1.0ms, 2.0ms, 5.0ms, 10.0ms, 50.0ms &
100.0ms (as per filter setting)
0.5ms, 1.0ms, 2.0ms, 5.0ms, 10.0ms, 50.0ms &
100.0ms (as per filter setting)
300mA (all inputs on) from 5 volt bus on backplane
Terminal block presence reported to RX3i CPU
4 RX3i 24VDC 32-Point Positive/Negative Logic Input Module
GFK-2379
Field Wiring: MDL660
Connections Terminals Terminals Connections
Input 1 1 19 Input 17
Input 2 2 20 Input 18
Input 3 3 21 Input 19
Input 4 4 22 Input 20
Input 5 5 23 Input 21
Input 6 6 24 Input 22
Input 7 7 25 Input 23
Input 8 8 26 Input 24
Common 1 - 8 9 27 Common 17 - 24
Input 9 10 28 Input 25
Input 10 11 29 Input 26
Input 11 12 30 Input 27
Input 12 13 31 Input 28
Input 13 14 32 Input 29
Input 14 15 33 Input 30
Input 15 16 34 Input 31
Input 16 17 35 Input 32
Common 9 - 16 18 36 Common 25 - 32
Field Wiring Terminals Field Wiring
Input 1
Input 2
Input 3
Input 4
Input 5
Input 6
Input 7
Input 8
1
2
3
4
5
6
7
8
9
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
Input 17
Input 18
Input 19
Input 20
Input 21
Input 22
Input 23
Input 24
Input 9
Input 10
Input 11
Input 12
Input 13
Input 14
Input 15
Input 16
10
11
12
13
14
15
16
17
18
Input 25
Input 26
Input 27
Input 28
Input 29
Input 30
Input 31
Input 32
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