IC655MDL533

IC655MDL533
I/O Module Specifications
32
GFK-0123
5112 VDC TTL Input, Positive/Negative
IC655MDL533
Logic, 64 Circuits
This module provides 64 circuits for connection to user input devices. 32 LEDs on the module indicate
the status of the 32 Inputs associated with one connector. A toggle switch above the top (Jl) connector
allows the user to choose the group of inputs being monitored (A to D, or E to H). The top 16 LEDs
perform a dual function. They normally provide a visual indication of the status of each input circuit
with each LED reflecting the ON or OFF state of the corresponding circuit. Second, when commanded
through programming, they indicate the starting I/O address for the module.
Field wiring connections from input devices is made to two 37-pin subminiature D-type connectors
(labeled Jl (A-D) and 52 (E-H)), mounted on the front of the module. One connector is used for two
groups with 16 inputs in each group. The four groups are labeled A and B (group l), C and D (group 2),
E and F (group 3), and group 4 is G and H. The pins in each group are labeled 1 to 8, for example:
group 1 is Al to A8 and Bl to B8. Each group has a common connection, labeled C. The user must
supply the source of 5 to 12 VDC power to reflect the state of the inputs to the module. All groups can
be powered from a common source or from different sources. The circuits can operate as either positive
or negative logic, depending on how the source voltage is connected to the module.
Table 16. Specifications
for 5/12 VDC Input, Positive/Negative
Logic - 64 Circuits
Input Circuit Type
Number of Circuits
Internal Circuit Grouping
Operating Voltage
Maximum Voltage (open circuit)
Input Current
ON Level
OFF Level
Maximum OFF Leakage
Minimum ON Current
OFF to ON Response
ON to OFF Response
Status Indicator Location
Internal Power Consumption (5 VIE)
Positive/Negative Logic (selectable by wiring)
Weight
39 oz (600 g)
64
Four groups, 16 circuits per group
4.75 to 13.2 VDC
15 VIX
2.5 mA at 5 V, 7.5 mA at 12 V
4.0 VDC; between C and Input terminal
2.0 VDC; between C and Input terminal
0.8 mA
1.8 mA
1 to 4 ms
1 to 4 ms
Logic side
Total; 136 mA (typical), 180 mA (maximum)
50 mA + 0.1 mA per On point + 2.5 mA per On LED
NUMBER 48
OF
CIRCUITS
ON
32
32 CIRCUITS ON
10%20%3CPC40%50%60%
AMBIENT TEMPERATURE
(“C)
Figure 25. Input Points vs. Temperature
for IC655MDL533
I/O Module Specifications
33
GFK-0123
TTL Compatibility
The following information is a guide to the TTL compatibility of this module.
Compatibility is
dependent on how the power for the TTL outputs is connected to the module. Examples of the two
possible conditions are shown below; one with the common connected to +5V,and the other with the
common connected to ground.
NOTE
In order for the TTL circuits on this module to work correctly, the user must ensure that the
external power supply is the same supply that is driving the TTL outputs.
Example
1: Common connection of module tied to +5V.
An example of this conection
is shown below.
EXTERNAL
POWER SUPPLY
I
I
I
1
I
a43330
MODULE CIRCUITRY
-ii&i FIELD
DEVICE
If connected to a +5 VDC supply which is also used to power the external TTL outputs, and the open
collector or bipolar ‘ITL outputs are tied to the Common terminal, then this module is compatible with
the following logic families:
l
Standard TTL outputs
l
74LS TTL series outputs
l
l
l
74s TTL series outputs
CMOS HC series outputs
4049 and 4050 CMOS outputs (but not other 4000 series CMOS outputs)
34
I/O Module Specifications
GFK-0123
Example 2: Common connection
An examDle of this connection
of module tied to ground.
is shown below.
EXTERNAL
POWER SUPPLY
rl
ov
+5v
I
1
a43329
MODULE CIRCUITRY
I
I
I
I
OUTPUT
FROM
FIELD
DEVICE
L
COUPLER
If connected to a +5 VDC supply which is also used to power the external TTL outputs, and the external
TTL common is connected to the Common tetial
on this module, then this module is compatible with
the following logic families:
Standard TTL outputs (with external 330 ohm pull-up resistor to +5 V)
74s series TTL outputs (with external 330 ohm pull-up resistor to +5 V)
Standard 400 series CMOS outputs (with external 330 ohm pull-up resistor to +5 V)
HC series CMOS (no pull-up resistor required)
I/O Module Specifications
35
GFK-0123
Wiring Information
The following
- IC655MDL533
figure provides
the information
required for connecting
FElD
rnRMG
TWMNAIS
MODULE
field devices to this module.
CIRCUITRY
EXAMPLE SHOWS
EXTERNAL DEVICE
SINKJNOCURRENT
---I+
OTHER
15 CIRCUITS
EXAMPLE SHOWS
UCTERNAL DEVICE
SOURCINQ CURRENT
EXAMPLE SHOWS
EXTERNAL DEVICE
SlNKlNO CURRENT
::
XXMON
OTHER
+1sclRcurls
- c92:
EXAMPLE SHOWS
EXTERNAL DEVICE
SCURCINO CURRENT
Figure 26. Field Wiring and Typical Circuit for IC655MDL533
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