Allen-Bradley MicroLogix 1762-IF2OF2 User manual

Publication 1762-IN005A-US-P
Installation Instructions
MicroLogix™ Analog Input/Output
Module
(Catalog Number 1762-IF2OF2)
Inside…
For More Information................................................................................2
Description................................................................................................3
Installation ................................................................................................4
Mounting...................................................................................................5
System Assembly......................................................................................7
Field Wiring Connections..........................................................................8
Input Type Selection ................................................................................ 8
Output Type Selection ............................................................................. 8
Wiring ..................................................................................................... 9
I/O Memory Mapping .............................................................................13
Specifications .........................................................................................18
Hazardous Location Considerations .......................................................22
Environnements dangereux ....................................................................23
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2MicroLogix™ Analog Input/Output Module
Publication 1762-IN005A-US-P
For More Information
If you would like a manual, you can:
• download a free electronic version from the internet:
www.ab.com/micrologix or www.theautomationbookstore.com
• purchase a printed manual by:
–contacting your local distributor or Rockwell Automation representative
–visiting www.theautomationbookstore.com and placing your order
–calling 1.800.963.9548 (USA/Canada)
or 001.330.725.1574 (Outside USA/Canada)
For Refer to this Document Pub. No.
Information on installing, wiring, and
operating a MicroLogix 1200
Programmable Controller
MicroLogix 1200 Programmable
Controllers User Manual
1762-UM001A-US-P
Installation guide for the MicroLogix
1200 Programmable Controller.
MicroLogix 1200 Programmable
Controllers Installation
Instructions
1762-IN006A-ML-P
Installation guide for the MicroLogix
1200 Memory Module and Real Time
clock.
MicroLogix 1200 Memory
Module and/or Real Time Clock
Installation Instructions
1762-IN001A-US-P
Installation guide for the 1762-IA8
Discrete Input Module
1762-IA8 120V ac Input Module
Installation Instructions
1762-IN002A-US-P
Installation guide for the 1762-OW8
Discrete Output Module
1762-OW8 Relay Output
Module Installation Instructions
1762-IN003A-US-P
Installation guide for the 1762-IQ8
Discrete Input Module
1762-IQ8 DC Input Module
Installation Instructions
1762-IN004A-US-P
More information on proper wiring and
grounding techniques.
Industrial Automation Wiring
and Grounding Guidelines
1770-4.1

MicroLogix™ Analog Input/Output Module 3
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Description
Item Description
1a upper panel mounting tab
1b lower panel mounting tab
2 power diagnostic LED
3 module door with terminal
identification label
4 bus connector
with male pins
5 bus connector cover
6 flat ribbon cable with bus
connector (female)
7 terminal block
8 DIN rail latch
9 pull loop
10 input type selector switch
1a
1b
2
6
8
1a
1b
5
2
3
9
4
6
7
10
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4MicroLogix™ Analog Input/Output Module
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Installation
1762 I/O is suitable for use in an industrial environment when installed in
accordance with these instructions. Specifically, this equipment is intended for
use in clean, dry environments (Pollution degree 2(1)) and to circuits not
exceeding Over Voltage Category II(2) (IEC 60664-1).(3)
Prevent Electrostatic Discharge
Remove Power
(1) Pollution Degree 2 is an environment where, normally, only non-conductive pollution occurs except that
occasionally a temporary conductivity caused by condensation shall be expected.
(2) Over Voltage Category II is the load level section of the electrical distribution system. At this level transient
voltages are controlled and do not exceed the impulse voltage capability of the product’s insulation.
(3) Pollution Degree 2 and Over Voltage Category II are International Electrotechnical Commission (IEC)
designations.
!
ATTENTION Electrostatic discharge can damage integrated circuits or
semiconductors if you touch bus connector pins. Follow these
guidelines when you handle the module:
• Touch a grounded object to discharge static potential.
• Wear an approved wrist-strap grounding device.
• Do not touch the bus connector or connector pins.
• Do not touch circuit components inside the module.
• If available, use a static-safe work station.
• When not in use, keep the module in its static-shield box.
!
ATTENTION Remove power before removing or installing this module.
When you remove or install a module with power applied, an
electrical arc may occur. An electrical arc can cause personal
injury or property damage by:
• sending an erroneous signal to your system’s field devices,
causing unintended machine motion
• causing an explosion in a hazardous environment
• causing permanent damage to the module’s circuitry
Electrical arcing causes excessive wear to contacts on both the
module and its mating connector. Worn contacts may create
electrical resistance.

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Mounting
Minimum Spacing
Maintain spacing from
enclosure walls, wireways,
adjacent equipment, etc.
Allow 50.8 mm (2 in.) of
space on all sides for
adequate ventilation, as
shown:
!
ATTENTION Do not remove protective debris strip until after the module and
all other equipment near the module is mounted and wiring is
complete. Once wiring is complete and the module is free of
debris, carefully remove protective debris strip. Failure to
remove strip before operating can cause overheating.
NOTE 1762 expansion I/O may be mounted horizontally only.
!
ATTENTION During panel or DIN rail mounting of all devices, be sure that
all debris (metal chips, wire strands, etc.) is kept from falling
into the module. Debris that falls into the module could cause
damage when power is applied to the module.
MicroLogix
1200
1762 I/O 1762 I/O 1762 I/O
Side Side
Top
Bottom
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6MicroLogix™ Analog Input/Output Module
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DIN Rail Mounting
The module can be mounted using the following DIN rails: 35 x 7.5 mm
(EN 50 022 - 35 x 7.5) or 35 x 15 mm (EN 50 022 - 35 x 15).
Before mounting the module on a DIN rail, close the DIN rail latch. Press the
DIN rail mounting area of the module against the DIN rail. The latch will
momentarily open and lock into place.
Use DIN rail end anchors (Allen-Bradley part number 1492-EA35 or
1492-EAH35) for environments with vibration or shock concerns.
Panel Mounting
Use the dimensional template shown below to mount the module. The preferred
mounting method is to use two M4 or #8 panhead screws per module. M3.5 or #6
panhead screws may also be used, but a washer may be needed to ensure a good
ground contact. Mounting screws are required on every module.
NOTE For environments with extreme vibration and shock concerns,
use the panel mounting method described below, instead of
DIN rail mounting.
End Anchor
End Anchor
90
(3.54)
100
(3.94)
40.4
(1.59)
40.4
(1.59)
14.5
(0.57)
For more than 2 modules: (number of modules - 1) x 40.4 mm (1.59 in.)
NOTE:
Hole spacing tolerance:
±0.4 mm (0.016 in.).
MicroLogix 1200
Expansion I/O
MicroLogix 1200
Expansion I/O
MicroLogix 1200
Expansion I/O
MicroLogix 1200

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System Assembly
The expansion I/O module is attached to the controller or another I/O module by
means of a ribbon cable after mounting as shown below.
NOTE Use the pull loop on the connector to disconnect modules. Do
not pull on the ribbon cable.
!
WARNING EXPLOSION HAZARD
• In Class I, Division 2 applications, the bus connector must
be fully seated and the bus connector cover must be
snapped in place.
• In Class I, Division 2 applications, all modules must be
mounted in direct contact with each other as shown on
page 6. If DIN rail mounting is used, an end stop must be
installed ahead of the controller and after the last 1762 I/O
module.
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8MicroLogix™Analog Input/Output Module
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Field Wiring Connections
Grounding the Module
This product is intended to be mounted to a well-grounded mounting surface
such as a metal panel. Additional grounding connections from the module’s
mounting tabs or DIN rail (if used) are not required unless the mounting surface
cannot be grounded. Refer to Industrial Automation Wiring and Grounding
Guidelines, Allen-Bradley publication 1770-4.1, for additional information.
Input Type Selection
Select the input type, current or voltage, using the switch located on the module’s
circuit board and the input type/range selection bits in the Configuration Data
File (see page 16). You can access the switch through the ventilation slots on the
top of the module. Switch 1 controls channel 0; switch 2 controls channel 1. The
factory default setting for both switch 1 and switch 2 is Current. Switch positions
are shown below.
Output Type Selection
The output type selection, current or voltage, is made by wiring to the
appropriate terminals, Iout or Vout, and by the type/range selection bits in the
Configuration Data File (see page 16).
1
ON
2
Current (ON) Default
Voltage (OFF)
Switch 1 = Channel 0
Switch 2 = Channel 1
Switch Location

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Wiring
System Wiring Guidelines
Consider the following when wiring your system:
• The analog common (COM) is not connected to earth ground inside the
module. All terminals are electrically isolated from the system.
• Channels are not isolated from each other.
• Use Belden™ 8761, or equivalent, shielded wire.
• Under normal conditions, the drain wire (shield) should be connected to the
metal mounting panel (earth ground). Keep shield connection to earth ground
as short as possible.
• To ensure optimum accuracy for voltage type inputs and outputs, limit overall
cable impedance by keeping all analog cables as short as possible. Locate the
I/O system as close to your voltage type sensors or actuators as possible.
• The 1762-IF2OF2 module does not provide loop power for analog inputs. Use
a power supply that matches the input transmitter specifications.
Terminal Block Layout
!
ATTENTION Analog outputs may fluctuate for less than a second when
power is applied or removed. This characteristic is common to
most analog outputs. While the majority of loads will not
recognize this short signal, it is recommended that preventive
measures be taken to ensure that connected equipment is not
affected.
V out 1
V out 0
IN 1 +
IN 0 +
I out 1
I out 0
IN 1 -
IN 0 -
COM
COM
Commons connected
internally.
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Differential Sensor Transmitter Types
NOTE Grounding the cable shield at the module end only usually
provides sufficient noise immunity. However, for best cable
shield performance, earth ground the shield at both ends, using
a 0.01µF capacitor at one end to block AC power ground
currents, if necessary.
IN 0 (+)
IN 0 (-)
V out 0
V out 1
I out 0
I out 1
COM
IN 1 (-)
IN 1 (+)
COM
Analog Sensor
Analog Load

MicroLogix™Analog Input/Output Module 11
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Sensor/Transmitter Types
(1) All power supplies rated N.E.C. Class 2.
Labeling the Terminals
A write-on label is provided with the module. Mark the identification of each
terminal with permanent ink, and slide the label back into the door.
+
+
-
-
+
-
+
-
IN +
IN -
COM
+
-
IN +
IN -
COM
+
-
IN +
IN -
COM
Power
Supply (1)
Power
Supply(1)
Power
Supply(1)
Transmitter
Transmitter
Transmitter
Module
Module
Module
Supply Signal
Supply Signal
2-Wire Transmitter
3-Wire Transmitter
4-Wire Transmitter
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12 MicroLogix™Analog Input/Output Module
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Wiring the Finger-Safe Terminal Block
When wiring the terminal block, keep the finger-safe cover in place.
1. Route the wire under the terminal pressure plate. You can use the stripped end
of the wire or a spade lug. The terminals will accept a 6.35 mm (0.25 in.)
spade lug.
2. Tighten the terminal screw making sure the pressure plate secures the wire.
Recommended torque when tightening terminal screws is 0.904 Nm (8 in-lbs).
3. After wiring is complete, remove the debris shield.
!
ATTENTION Be careful when stripping wires. Wire fragments that fall into
a module could cause damage when power is applied. Once
wiring is complete, ensure the module is free of all metal
fragments.
NOTE If you need to remove the finger-safe cover, insert a screw
driver into one of the square wiring holes and gently pry the
cover off. If you wire the terminal block with the finger-safe
cover removed, you will not be able to put it back on the
terminal block because the wires will be in the way.

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Wire Size and Terminal Screw Torque
Each terminal accepts up to two wires with the following restrictions:
I/O Memory Mapping
A ddressing
The addressing scheme for 1762 Expansion I/O is shown below.
(1) I/O located on the controller (embedded I/O) is slot 0. I/O added to the controller (expansion I/O) begins with
slot 1.
Wire Type Wire Size Terminal Screw Torque
Solid Cu-90°C (194°F) #14 to #22 AWG 0.904 Nm (8 in-lbs)
Stranded Cu-90°C (194°F) #16 to #22 AWG 0.904 Nm (8 in-lbs)
X1:x.0/0
File Type
Input (I) or Output (O)
Data File
0 or 1
Slot Number (1)
Word
Bit
Bit Delimiter
Word Delimiter
Slot Delimiter
Data File # 0 = Output
Data File # 1 = Input
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14 MicroLogix™Analog Input/Output Module
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Input Data File
For each module, slot x, words 0 and 1 contain the analog values of the inputs.
The module can be configured to use either raw/proportional data or
scaled-for-PID data. The input data file for each configuration is shown below.
The bits are defined as follows:
• SIx = General status bits for input channels 0 and 1.
SOx = General status bits for output channels 0 and 1. This bit is set when an
error (over- or under-range) exists for that channel, or there is a general
module hardware error.
• OIx = Over-range flag bits for input channels 0 and 1.
OOx = Over-range flag bits for output channels 0 and 1. These bits can be used
in the control program for error detection.
• UIx = Under-range flag bits for input channels 0 and 1.
UOx = Under-range flag bits for output channels 0 and 1. These bits can be
used in the control program for error detection.
Raw/Proportional Format
Word
Bit Position
1514131211109876543210
0 0 Channel 0 Data 0 to 32760 0 0 0
1 0 Channel 1 Data 0 to 32760 0 0 0
2 reserved
3 reserved
4reserved SO
1
SO
0reserved SI 1
SI
0
5UI
0
OI
0
UI
1
OI
1reserved UO 0
OO
0
UO
1
OO
1reserved
Scaled-for-PID Format
Word
Bit Position
1514131211109876543210
0 0 0 Channel 0 Data 0 to 16,380 0 0
1 0 0 Channel 1 Data 0 to 16,380 0 0
2 reserved
3 reserved
4reserved SO
1
SO
0reserved SI 1
SI
0
5UI
0
OI
0
UI
1
OI
1reserved U0 0
O0
0
U0
1
O0
1reserved

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Output Data File
For each module, slot x, words 0 and 1 contain the channel output data.
Raw/Proportional Format
Word
Bit Position
1514131211109876543210
0 0 Channel 0 Data 0 to 32,760 0 0 0
1 0 Channel 1 Data 0 to 32,760 0 0 0
Scaled-for-PID Format
Word
Bit Position
1514131211109876543210
0 0 0 Channel 0 Data 0 to 16,380 0 0
1 0 0 Channel 1 Data 0 to 16,380 0 0
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16 MicroLogix™Analog Input/Output Module
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Configuration Data File
The configuration of the format for analog inputs and outputs is made at going to
run (GTR). Changes made to the configuration file while in run mode have no
effect.
The configuration table for analog inputs and outputs is shown in the table below.
Configuration Data File
Word
Bit Position
1514131211109876543210
0
reserved
Data Format Input
Channel 0
Type/Range Select
Input Channel 0 reserved
1 Data Format Input
Channel 1
Type/Range Select
Input Channel 1 reserved
2 reserved
3 reserved
4
reserved
Data Format
Output Channel 0
Type/Range Select
Output Channel 0 reserved
5 Data Format
Output Channel 1
Type/Range Select
Output Channel 1 reserved
6 reserved
7 reserved

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Bit 15 and Bits 7 through 0 - Reserved
These bits are reserved and are not checked by the module.
Data Format (Bits 14 through 12)
These bits indicate the format of the data as shown in the following table. Other
combinations of these bits are not supported and result in an error.
Type/Range Select (Bits 11 through 8)
These bits indicate the type and range as in the following table. Other
combinations of these bits are not supported and result in an error.
Bit Settings Data Format
14 13 12
0 0 0 Raw/Proportional
0 1 0 Scaled for PID
other Not Supported
Bit Settings Data Format
11 10 9 8
0 0 1 0 Voltage Mode 0 to 10V dc
0 0 1 1 Current Mode 4 to 20 mA
other Not Supported
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Specifications
General Specifications
Specification Value
Dimensions 90 mm (height) x 87 mm (depth) x 40 mm (width)
height including mounting tabs is 110 mm
3.54 in. (height) x 3.43 in. (depth) x 1.58 in. (width)
height including mounting tabs is 4.33 in.
Approximate Shipping Weight
(with carton)
240g (0.53 lbs.)
Storage Temperature -40°C to +85°C (-40°F to +185°F)
Operating Temperature 0°C to +55°C (-32°F to +131°F)
Operating Humidity 5% to 95% non-condensing
Operating Altitude 2000 meters (6561 feet)
Vibration Operating: 10 to 500 Hz, 5G, 0.030 in. max. peak-to-peak
Shock Operating: 30G
Bus Current Draw (max.) 40 mA at 5V dc
105 mA at 24V dc
Analog Normal Operating Range Voltage: 0 to 10V dc
Current: 4 to 20 mA
Full Scale(1) Analog Ranges Voltage: 0 to 10.5V dc
Current: 0 to 21 mA
Resolution 12 bits (unipolar)
Repeatability(2) ±0.1%
Input and Output Group to System
Isolation 30V ac/30V dc rated working voltage(3)
(N.E.C. Class 2 required)
(IEC Class 2 reinforced insulation)
type test: 500V ac or 707V dc for 1 minute
Module Power LED On: indicates power is applied.
Recommended Cable Belden™8761 (shielded)

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Vendor I.D. Code 1
Product Type Code 10
Product Code 75
Agency Certification C-UL certified (under CSA C22.2 No. 142)
UL 508 listed
CE compliant for all applicable directives
Hazardous Environment Class Class I, Division 2, Hazardous Location, Groups A, B, C, D (UL
1604, C-UL under CSA C22.2 No. 213)
Noise Immunity NEMA standard ICS 2-230
Radiated and Conducted Emissions EN50081-2 Class A
Electrical /EMC: The module has passed testing at the following levels:
ESD Immunity (IEC1000-4-2) 4 kV contact, 8 kV air, 4 kV indirect
Radiated Immunity (IEC1000-4-3) 10 V/m, 80 to 1000 MHz, 80% amplitude modulation, +900
MHz keyed carrier
Fast Transient Burst (IEC1000-4-4) 2 kV, 5 kHz
Surge Immunity (IEC1000-4-5) 1 kV galvanic gun
Conducted Immunity (IEC1000-4-6) 10V, 0.15 to 80 MHz(4)
(1) The over- or under-range flag comes on when the normal operating range (over/under) is exceeded. The
module continues to convert the analog input up to the maximum full scale range.
(2) Repeatability is the ability of the input module to register the same reading in successive measurements for
the same input signal.
(3) Rated working voltage is the maximum continuous voltage that can be applied at the terminals with respect
to earth ground.
(4) Conducted Immunity frequency range may be 150 kHz to 30 MHz if the Radiated Immunity frequency range is
30 MHz to 1000 MHz.
Specification Value
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20 MicroLogix™Analog Input/Output Module
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Input Specifications
Specification Value
Number of Inputs 2 differential (unipolar)
A/D Converter Type Successive approximation
Common Mode Voltage
Range(1)
(1) For proper operation, both the plus and minus input terminals must be within ±27V of analog common.
±27 V
Common Mode Rejection(2)
(2) Vcm = 1 Vpk-pk AC
> 55 dB at 50 and 60 Hz
Non-linearity (in percent full
scale)
±0.1%
Typical Overall Accuracy(3)
(3) Vcm = 0 (includes offset, gain, non-linearity and repeatability error terms)
±0.5% full scale at 0 to 55°C
±0.3% full scale at 25°C
Input Impedance Voltage Terminal: 200KΩ
Current Terminal: 250Ω
Current Input Protection ±32 mA
Voltage Input Protection ±30 V
Channel Diagnostics Over or under range or open circuit condition by bit reporting for
analog inputs.