Rockwell Automation 1771-IFFA User Manual

Fast Analog Input Module
Cat. No. 1771-IFF Series A
Installation Instructions

Contents

Use this document as a guide when installing the 1771-IFF series A fast analog input module.
To See page
Important User Information 1
North American Hazardous Location Approval 4
Understand Product Compatibilty 5
Calculate Power Requirements 6
Determine Module Placement in the I/O Chassis 6
Set the Simulation Jumper 7
Set the Configuration Jumpers 7
Key the Backplane Connector 8
Install the Module and Field Wiring Arm 8
Connect Wiring to the Field Wiring Arm 9
Grounding 13
Configure the Module 14
Interpret Status Indicators 16
Troubleshooting 17
Specifications 18

Important User Information

1 Publication 1771-IN046B-EN-P - December 2003
In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment.
The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or liability for actual use based on the examples and diagrams.
No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or software described in this manual.
2 Fast Analog Input Module
Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation, Inc. is prohibited.
Throughout this manual we use notes to make you aware of safety considerations.
WARNING
IMPORTANT
ATTENTION
Identifies information about practices or circumstances that can cause an explosion in a hazardous environment, which may lead to personal injury or death, property damage, or economic loss.
Identifies information that is critical for successful application and understanding of the product.
Identifies information about practices or circumstances that can lead to personal injury or death, property damage, or economic loss. Attentions help you:
identify a hazard
avoid a hazard
recognize the consequence
Publication 1771-IN046B-EN-P - December 2003
Fast Analog Input Module 3
ATTENTION
Environment and Enclosure
This equipment is intended for use in a Pollution Degree 2 industrial environment, in overvoltage Category II applications (as defined in IEC publication 60664-1), at altitudes up to 2000 meters without derating.
This equipment is considered Group 1, Class A
dus
trial equipment according to IEC/CISPR
in Publication 11. Without appropriate precautions, there may be potential difficulties ensuring electromagnetic compatibility in other environments due to conducted as well as radiated disturbance.
This equipment is supplied as "open type"
m
equip that is suitably designed for those specific environmental conditions that will be present and appropriately designed to prevent personal injury resulting from accessibility to live parts. The interior of the enclosure must be accessible only by the use of a tool. Subsequent sections of this publication may contain additional information regarding specific enclosure type ratings that are required to comply with certain product safety certifications.
ent. It must be mounted within an enclosure
See NEMA Standards publication 250 and IEC
u
blication 60529, as applicable, for explanations of
p the degrees of protection provided by different types of enclosure. Also, see the appropriate sections in this publication, as well as the Allen-Bradley publication 1770-4.1 ("Industrial Automation Wiring and Grounding Guidelines"), for additional installation requirements pertaining to this equipment.
Publication 1771-IN046B-EN-P - December 2003
4 Fast Analog Input Module
North American Hazardous Location Approval
This 1771-IFF series A module is hazardous location approved.
The following information applies when operating this equipment in hazardous locations:
Products marked “CL I, DIV 2, GP A, B, C, D” are suitable for use in Class I Division 2 Groups A, B, C, D, Hazardous Locations and nonhazardous locations only. Each product is supplied with markings on the rating nameplate indicating the hazardous location temperature code. When combining products within a system, the most adverse temperature code (lowest “T” number) may be used to help determine the overall temperature code of the system. Combinations of equipment in your system are subject to investigation by the local Authority Having Jurisdiction at the time of installation.
EXPLOSION HAZARD
WARNING
Do not disconnect equipment unless power has been removed or the area is known to be nonhazardous.
Do not disconnect connections to this equ ipment unless power has been removed or the area is known to be nonhazardous. Secure any external connections that mate to this equipment by using screws, sliding latches, threaded connectors, or other means provided with this product.
Substitution of components may impair suitability for Class I, Division 2.
If this product contains batteries, they must only be changed in an area known to be nonhazardous.
Informations sur l’utilisation de cet équipement en environnements dangereux :
Les produits marqués "CL I, DIV 2, GP A, B, C, D" ne conviennent qu’à une utilisation en environnements de Classe I Division 2 Groupes A, B, C, D dangereux et non dangereux. Chaque produit est livré avec des marquages sur sa plaque d’identification qui indiquent le code de température pour les environnements dangereux. Lorsque plusieurs produits sont combinés dans un système, le code de température le plus défavorable (code de température le plus faible) peut être utilisé pour déterminer le code de température global du système. Les combinaisons d’équipements dans le système sont sujettes à inspection par les autorités locales qualifiées au moment de l’installation.
RISQUE D’EXPLOSION
AVERTISSEMENT
Couper le courant ou s’assurer que l’environnement est classé non dangereux avant de débrancher l'équipement.
Couper le courant ou s'assurer que l’environnement est classé non dangereux avant de débrancher les connecteurs. Fixer tous les connecteurs externes reliés à cet équipement à l'aide de vis, loquets coulissants, connecteurs filetés ou autres moyens fournis avec ce produit.
La substitution de composants peut rendre cet équipement inadapté à une utilisation en environnement de Classe I, Division 2.
S’assurer que l’environnement est classé non dangereux avant de changer les piles.
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Fast Analog Input Module 5

Understand Product Compatibilty

ATTENTION
Preventing Electrostatic Discharge
This equipment is sensitive to electrostatic discharge, which can cause internal damage and affect normal operation. Follow these guidelines when you handle this equipment:
Touch a grounded object to discharge potential static.
Wear an approved grounding wriststrap.
Do not touch connectors or pins on component
boards.
Do not touch circuit components inside the equipment.
If available, use a static-safe workstation.
When not in use, store the equipment in appropriate
static-safe packaging.
The 1771-IFF module can be used with any 1771 I/O chassis. Compatibility and data table usage is listed below.
Catalog Number
Use of Data Table Compatibility
Image Input Bits
Output Image Bits
Read Block Words
Write Block Words
Addressing Chassis
1/2- Slot 1-Slot 2-Slot
Series
1771-IFF/A 8 8 24 41 Y Y Y A, B A = Compatible with 1771-A1, -A2, -A4
B = Compatible with 1771-A1B, -A2B, -A3B, -A3B1, -A4B Y = Compatible without restriction
ATTENTION
Do not use this module with Cat. No. 1771-AL PLC-2/20 or 2/30 Local Adapter.
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6 Fast Analog Input Module

Calculate Power Requirements

Determine Module Placement in the I/O Chassis

The module receives its power through the 1771 I/O power supply and requires 500mA from the backplane.
Add this current to the requirements of all other modules in the I/O chassis to prevent overloading the chassis backplane and/or backplane power supply.
ATTENTION
Place your module in any slot of the chassis except for the extreme left slot. This slot is reserved for PC processors or adapter modules.
Group your modules to minimize adverse affects from radiated electrical noise and heat. We recommend the following:
Group analog input and low voltage dc modules away from ac modules
or high voltage dc modules to minimize electrical noise interference.
Do not place this module in the same I/O group with a digital
high-density I/O module when using 2-slot addressing. This module uses a byte in both the input and output image tables for block transfer.
Do not insert or remove modules from the I/O chassis while system power is ON. Failure to observe this rule could result in damage to the module circuitry.
The 1771-IFF is a modular component of the 1771 I/O system requiring a properly installed system chassis. Refer to publication 1771-IN075 for detailed information on acceptable chassis, proper installation and grounding requirements. Limit the maximum adjacent slot power dissipation to 10W or less.
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Fast Analog Input Module 7

Set the Simulation Jumper

Set the Simulation Jumper
1. Locate the simulation jumper at the top edge of the module circuit board.
2. Using your fingers, slide the jumper of f the 2 posts.
3. Carefully position the jumper on 2 of the 3 posts that correspond to your requirement.

Set the Configuration Jumpers

The module is shipped with the simulation jumper set in position POS G. This setting allows input data to go above and below the range points. If the simulation jumper is set to the POS E position, input data is clamped (does not exceed) at range end points.
Simulation
Jumper
Simulation
Top edge of circuit board
POS G POS E
Simulation Jumper (shown in POS E position). This position provides Clamped Input Data at range end points.
Top edge of circuit board
POS G POS E
Simulation Jumper (shown in POS G position). This position does not Clamp Input Data at range end points.
The module has configuration jumpers for determining the input type (voltage or current) desired for each input. The module is shipped with the
configuration jumpers positioned for voltage mode.
Not that you can select either voltage or current for each input, but they must
l be either single-ended or all differential. Do not mix single-ended or
al
differential inputs on the module.
Remove the four screws securing the side
11
cover to the module and remove the covers.
Reposition the cover and secure with the four
13
screws removed in step 1.
19805
19813
Reposition the configuration jumpers associated with each
12
input channel according to your requirements
Y ou can mix voltage mode and current mode settings on the module. Make sure that the entire module is set for either single-ended or dif ferential. Do not mix them.
Voltage Mode
Differential or Single-ended (factory set)
Channel
Current Mode
Differential
Current
Single-ended
Odd channel current
Even channel voltage
Even channel current
Odd channel voltage
Single-ended Current
1 and 2 Channel 3 and 4
Channel 5 and 6
Channel
7 and 8 Channel 9 and 10
Channel 11 and 12
Channel 13 and 14
Channel 15 and 16
Configuration Jumpers
DifferentialSingle-ended
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5
Channel 6
Channel 7
Channel 8
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8 Fast Analog Input Module

Key the Backplane Connector

ATTENTION
Observe the following precautions when inserting or removing keys:
insert or remove keys with
make sure that key placement
Incorrect keying or the use of a tool can result in damage to the backplane connector and possible system faults.
your fingers
is correct
Place your module in any slot in the chassis except the leftmost slot which is reserved for processors or adapters.
Position the keying bands in the backplane connectors to correspond to the key slots on the module.
I/O chassis
Upper Connector
Y ou can change the position of these bands if subsequent system design and rewiring makes insertion of a dif ferent type of module necessary.
Place the keying bands:
between 10 and 12 between 24 and 26
11022-I

Install the Module and Field Wiring Arm

ATTENTION
WARNING
Remove power from the 1771 I/O chassis backplane and field wiring arm before removing or installing the I/O module.
Failure to remove power from the backplane or wiring
arm could cause module damage, degradation of performance, or injury.
Failure to remove power from the backplane could
cause injury or equipment damage due to possible unexpected operation.
If you insert or remove the module while backplane power is on, or connect or disconnect the wiring arm with field side power applied, an electrical arc can occur. This could cause an explosion in hazardous location installations.
Be sure that power is removed or the area is nonhazardous before proceeding.
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Fast Analog Input Module 9
1
2
1771-A1B, -A2B, -A3B, -A3B1, -A4B I/O chassis
locking tab
card guides
Snap the chassis latch over the top of the module to secure it.
Attach the wiring arm (1771-WG) to the horizontal bar at the bottom of the I/O chassis.
The wiring arm pivots upward and connects with the module so you can install or remove the module without disconnecting the wires.
IFF module
1771-A1B, -A2B, -A3B1, -A4B Series B I/O chassis
locking bar pin
Swing the chassis locking bar down into place to secure the modules. Make sure the locking pins engage.
wiring arm
locking bar
card guides
IFF module
19809
1771-WG

Connect Wiring to the Field Wiring Arm

remove
horizontal bar
install
17643
Connect your I/O devices to the cat. no. 1771-WG wiring arm shipped with the module
ATTENTION
Remove power from the 1771 I/O chassis backplane and field wiring arm before removing or installing the I/O module.
Failure to remove power from the backplane or wiring
arm could cause module damage, degradation of performance, or injury.
Failure to remove power from the backplane could
cause injury or equipment damage due to possible unexpected operation.
Publication 1771-IN046B-EN-P - December 2003
10 Fast Analog Input Module
WARNING
If you connect or disconnect the wiring with field-side power applied, an electrical arc can occur. This could cause an explosion in hazardous location installations.
Be sure that power is removed or the area is nonhazardous before proceeding.
Input connections for the 1771-IFF with:
single-ended inputs are shown on page 11.
differential inputs are shown on page 12.
Minimizing Ground Loops
To minimize ground loop current on input circuits:
use single-ended mode whenever possible
use 2-wire transmitters with a common power supply
separate 2-wire and 4-wire transmitters between different modules
tie 4-wire transmitter and/or separate power supply grounds together
IMPORTANT
Mixing 2-wire and 4-wire transmitter inputs on the same module is not recommended. Power supply placement can make it impossible to eliminate ground loops.
Cable Lengths
Recommended maximum cable length for voltage-mode input devices is 50 feet (15.24m), due to possible signal degradation and electrical noise immunity in typical industrial environments. Cable length for current-mode input devices need not be as restrictive because analog signals from these devices are less sensistive to electrical noise interference.
Publication 1771-IN046B-EN-P - December 2003
Fast Analog Input Module 11
Connection Diagram for 16 Single-ended Inputs and Two-Wire Transmitters
single-ended wiring
Note: Refer to transmitter manufacturers specifications for power supply connections.
Note:
– All module commons are electrically tied together inside the module.
– Jumper all unused channels to module common to reduce noise.
– Tie power supply grounds together to minimize ground loops.
The 1771-IFF module does not supply loop power for the input device. The user must supply loop power for loop-powered input devices.
The sensor cable must be shielded. The shield must:
extend the length of the cable, but be connected only at the 1771 I/O chassis extend up to the point of termination
Important: The shield should extend to the termination point, exposing just enough
2-Wire Transmitter
Power Supply
2-Wire Transmitter
Power Supply
cable to adequately terminate the inner conductors. Use heat shrink or another suitable insulation where the wire exits the cable jacket.
+
+
_
Functional Ground
Channel 1 Channel 2
Channel 3 Channel 4
Module Common
Channel 5 Channel 6 Channel 7 Channel 8
Module Common
Channel 9 Channel 10 Channel 11
Channel 12
Module Common
Channel 13 Channel 14 Channel 15
Channel 16 Module Common Module Common
1771-WG
Field Wiring Arm
1 2
3 4 5
6 7
8 9
10 11
12 13 14 15 16 17 18
19 20 21
Connection Diagram for 16 Single-ended Inputs and Four-Wire Transmitters
Note: Refer to transmitter manufacturers specifications for power supply connections.
Note:
– All module commons are electrically tied together inside the module.
– Jumper all unused channels to module common to reduce noise.
– Tie power supply grounds together to minimize ground loops.
The 1771-IFF module does not supply loop power for the input device. The user must supply loop power for loop-powered input devices.
The sensor cable must be shielded. The shield must:
extend the length of the cable, but be connected only at the 1771 I/O chassis extend up to the point of termination
Important: The shield should extend to the termination point, exposing just enough
Power Supply
Power Supply
cable to adequately terminate the inner conductors. Use heat shrink or another suitable insulation where the wire exits the cable jacket.
4-Wire Transmitter
4-Wire Transmitter
+
+
_
Functional Ground
Channel 1
Channel 2
Channel 3
Channel 4 Module Common
Channel 5
Channel 6
Channel 7
Channel 8 Module Common
Channel 9
Channel 10
Channel 11
Channel 12 Module Common
Channel 13
Channel 14
Channel 15
Channel 16 Module Common Module Common
1771-WG
Field Wiring Arm
1 2
3 4 5
6 7
8 9
10 11
12 13 14 15 16 17 18
19 20 21
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12 Fast Analog Input Module
differential wiring
Connection Diagram for 8 Differential Inputs and Two-Wire Transmitters
Note: Refer to transmitter manufacturers
specifications for power supply connections.
Note:
2-Wire Transmitter
– Unused channels must have their + and
- inputs jumpered together and tied to module common to reduce noise.
– Tie power supply grounds together to
2-Wire Transmitter
minimize ground loops.
The 1771-IFF module does not supply loop power for the input device. The user must supply loop power for loop-powered input devices.
Configuring the module for differential inputs does not provide isolation.
The sensor cable must be shielded. The shield must:
extend the length of the cable, but be connected only at the 1771 I/O chassis extend up to the point of termination
Important: The shield should extend to the termination point, exposing just enough
cable to adequately terminate the inner conductors. Use heat shrink or another suitable insulation where the wire exits the cable jacket.
Power Supply
Power Supply
+
+
Functional Ground
Channel 1+ Channel 1­Channel 2+ Channel 2-
Not used Channel 3+ Channel 3­Channel 4+ Channel 4­Not used Channel 5+ Channel 5­Channel 6+ Channel 6­Not used Channel 7+ Channel 7­Channel 8+
Channel 8­Module Common Module Common
1771-WG Field W iring Arm
1 2
3 4 5
6 7
8 9
10 11
12 13 14 15 16 17 18
19 20 21
Connection Diagram for 8 Differential Inputs and Four-Wire Transmitters
Note: Refer to transmitter manufacturers
specifications for power supply connections.
Note:
Power Supply
4-Wire Transmitter
– Unused channels must have their + and
- inputs jumpered together and tied to module common to reduce noise.
– Tie power supply grounds together to
Power Supply
4-Wire Transmitter
minimize ground loops.
The 1771-IFF module does not supply loop power for the input device. The user must supply loop power for loop-powered input devices.
Configuring the module for differential inputs does not provide isolation.
The sensor cable must be shielded. The shield must:
extend the length of the cable, but be connected only at the 1771 I/O chassis extend up to the point of termination
Important: The shield should extend to the termination point, exposing just enough
cable to adequately terminate the inner conductors. Use heat shrink or another suitable insulation where the wire exits the cable jacket.
+
+
Functional Ground
Channel 1+
Channel 1-
Channel 2+
Channel 2-
Not used
Channel 3+
Channel 3-
Channel 4+
Channel 4-
Not used
Channel 5+
Channel 5-
Channel 6+
Channel 6-
Not used
Channel 7+
Channel 7-
Channel 8+
Channel 8­Module Common Module Common
1771-WG Field Wiring Arm
1 2
3 4 5
6 7
8 9
10 11
12 13 14 15 16 17 18
19 20 21
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Fast Analog Input Module 13

Grounding

1
Cable Grounding
Remove a length of cable jacket from the Belden 8761 cable.
Belden 8761 Cable
When using shielded cable wire, ground the foil shield and drain wire only at one end of the cable. We recommend that you wrap the foil shield and drain together, and connect them to a chassis mounting bolt, grounding stud or chassis single-point grounding point. Use heat-shrink tubing to seal the exit point of the wires. At the opposite end of the cable, tape exposed shield and drain wire with electrical tape to insulate it from electrical contact.
Pull the foil shield and bare drain wire from the insulated wires.
Bare drain wire
Insulated wires
Foil shield
Twist the foil shield and drain wire together to form a single strand.
Attach a ground lug, and apply heat shrink tubing to the exit area.
Length as needed
20104
2
When you connect grounding conductors to the I/O chassis grounding stud, place a star washer under the first lug, then place a nut with captive lock washer on top of each ground lug.
Grounding Stud
I/O Chassis Side Plate
1
Use the cup washer if crimp-on lugs are not used.
Chassis Ground
Star Washer
Ground Lug
Nut
Nut and Captive Washer
Ground Lug
Shield and Drain twisted together
19480
Single-point Grounding
Extend shield to termination point. Expose just enough cable to adequately terminate inner conductors.
Use heat shrink tubing or other suitable insulation where wire exits cable jacket.
1
Shield and Drain twisted together
#10 Thread-forming screw
External-tooth Washers
19923
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14 Fast Analog Input Module
pg
any of 7 input voltage or current

Configure the Module

Dec. Bits 15 14 13
Octal Bits 17 16 15
Word 1 8 7 6 5 4 3 2 1 Range Selection - Channels 1 - 8
2 16 15 14 13 12 11 10 9
Input range selections allow the user to configure the inputs for
ranges. Two bits are required for for each channel. Bits 00 and 01 for channel 1, bits 02 and 03 for channel 2, etc.
3 Real Time Sampling
Real time sampling - Default is no RTS
Bit 10 Bit 09
(11)
(12)
00
1
0 1
0 1
1
4
Data format - set to
match your processor .
BCD (default)
2' s Complement, data first Two' s complement binary
Signed magnitude binary
Minimum sign bits , when set, designate negative minimum scaling values for the corresponding input channels. Bit 00 corresponds to channel 1, bit 01 corresponds to channel 2, etc.
You must configure the module to conform to the analog device and specific application that you have chosen. Use the configuration information below to configure your module to your specifications.
1 2
1 4
Bit 01 Bit 00 Voltage or Current Input
100
11
1
13
2
0 0 1 to 5V dc, 4 to 20mA (default)
0
1
1
Data
Format
08 07 06 05 04 03 02 01 00
9
11 10 07 06 05 04 03 02 01 00
1 0 to 5V dc, 0 to 20mA
0 -5 to +5V dc, -20 to +20mA
1 -10 to +10V dc, 0 to 10V dc
Input Type
Digital Filter
Digital filter reduces ef fect of noise on input. (Default is no filter.)
Input type, set bit for differential mode on all channels. Reset (0) = single-ended inputs (default) Set (1) = differential inputs
Description
Range Selection - Channels 9-16
Real time sampling, data format, input type and digital filter
Sign Bits, minimum scaling values
Maximum sign bits, when set, designate maximum scaling values that are negative.
5
6, 8, 10, 12,
14, 16, 18, 20, 22, 24, 26, 28, 30,
32, 34, 36
7, 9, 1 1, 13,
15, 17, 19, 21, 23, 25, 27, 29, 31,
33, 35, 37
38
39
40
41 BCD or binary , 0-256 (2X only), 0 = default (8X oversample) Oversampling
Maximum scaling value must be greater than minimum on any particular channel. Bit 00 corresponds to channel 1, bit 01 corresponds to channel 2, etc.
Minimum scaling values for each channel. Enter in BCD format. Channel 1 - minimum scaling
Maximum scaling values for each channel. Enter in BCD format. Channel 1 - maximum scaling
Offset calibration - Each bit represents a channel (bit 00 to channel 1, bit 02 to channel 2, etc.). When the bit is set, and a BTW has been sent, the module will read the channels and adjust the of fset to analog ground potential. In differential mode, bits 08 thru 15 (10 thru 17 in octal) are ignored. In current mode, apply 0mA.
Gain calibration - Each bit represents a channel (bit 00 to channel 1, bit 02 to channel 2, etc). When the bit is set, and a BTW has been sent, the module will read the channels and adjust the gain correction values. If used on +, 0 to 5, or 1 to 5V ranges, a value of 5V is expected. If used on +10V range, 10V is expected. In dif ferential mode, bits 08 thru 15 (10 thru 17 in octal) are ignored. In current mode, apply 20mA.
14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Channel Sampling Disable
15
Sign Bits, maximum scaling values
Of fset Calibration
Gain Calibration
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Fast Analog Input Module 15
Underrange bts for each channel. Bit 00 for channel 1, bit 01 for channel 2, etc
Use the following table to read data from your input module.
Dec. Bits 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
Octal Bits 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00
PU
Word 1
Hardware fault - (HF) When this bit is set, the dc/dc converter fuse has blown. Digital logic will continue to operate.
EEPROM status bit - (EE) This bit is set if an error occurs saving calibration data to nonvolatile memory . If this bit is set at powerup, the data from the EEPROM did not pass the checksum and no calibration values are used. Calibration status bit - (CS) When calibrating the module, this bit will be cleared if the calibration was successful. If the bit is set, an incorrect voltage/current was applied, or
offset and gain calibrations were attempted simultaneously
Real time sample fault bit - (RTS) This bit is set if the module is configured for R TS and a block transfer read has not occurred within the user±programmed period.
2
3
4 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
5 Channel 1 Input Channel 1 Input
6 Channel 2 Input Channel 2 Input
7 Channel 3 Input Channel 3 Input
8 Channel 4 Input Channel 4 Input
16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
i
These bits are set (1) at approximately the input range limits shown on the right.
Overrange bits for each channel. Bit 00 for channel 1, bit 01 for channel 2, etc. These bits are set (1) at approximately the input range limits shown on the right.
Polarity bits - Set when input is less than zero. Bit 00 for channel 1, bit 01 for channel 2, etc.
HF EE CS
.
RTS IS
OR
Power up bit - (PU) Used by the module to tell the processor that it is alive but not yet configured. It is a key element in the application program.
Out of range bit - (OR) This bit is sent to tell the processor that one or more channels are either over or under range.
Invalid scaling bit - (IS) This bit reports that the scaling is somehow invalid. Usually , both values are equal or minimum is greater than maximum when this bit comes on. Can also be an invalid filter value.
Data underrange for channels 1-16
Data overrange for channels 1-16
1 to 5V dc, 4 to 20mA (default)
.
0 to 5V dc, 0 to 20mA
-5 to +5V dc, -20 to +20mA
-10 to +10V dc, 0 to 10V dc
Data polarity for channels 1-16
Description
Diagnostics
⇓ ⇓ ⇓ ⇓
20 Channel 16 Input Channel 16 Input
21 Offset calibration results bits - Each bit represents a channel. After a
calibration BTW has been sent, the module confirms calibration by echoing back the channels that were calibrated during the offset calibration BTW . In differential mode, channels 09 thru 16 are zero.
22 Gain calibration results bits - Each bit represents a channel. After a calibration
BTW has been sent, the module confirms calibration by echoing back the channels that were calibrated during the gain calibration BTW. In dif ferential mode, channels 09 thru 16 are zero.
23 binary, 1ms resolution Time Stamp
24 10ms resolution Scan time
Of fset Calibration Results
Gain Calibration Results
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16 Fast Analog Input Module
When Data Format bits 9 and 10 in block transfer write word 3 are set for “2’s complement - data first,” the block transfer read will transmit channel data first in the transfer. For single-ended configuration, words 1 through 16 will have channel data. For differential configuration, words 1 through 8 will contain channel data.
Default Configuration
If a write block of five words with all zeroes is sent to the module, default selections will be:
1 to 5V dc or 4 to 20mA (dependent on configuration jumper setting)
BCD data format
no real time sampling (RTS)
no filtering
single-ended inputs
8X oversample
oversample enabled on all channels

Interpret Status Indicators

The front panel of the analog input module contains a green RUN indicator and a red FAULT indicator. At power-up, the module momentarily turns on the red indicator as a lamp test, then checks for:
correct RAM operation
firmware errors
If there is no fault, the red indicator goes off.
The green indicator comes on when the module is powered. It will flash until the module is programmed. If a fault is found initially or occurs later, the red fault indicator lights. The module also reports status and specific faults (if they occur) in every transfer of data (BTR) to the PC processor. Monitor the green and red indicators and status bits in word 1 of the BTR file when troubleshooting your module.
FAST
ANALOG
(12 BIT)
RUN
FL T
Green RUN indicator
Red F AULT indicator
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Fast Analog Input Module 17

Troubleshooting

Possible module fault causes and corrective action is described in the following table.
Indicators Probable Cause Recommended Action
RUN (green on)
FLT (red off)
RUN (green blinking)
FLT (red off)
RUN (green off)
FLT (red on)
RUN (green off)
FLT (red off)
Normal operation None
Awaiting configuration bloc
k transfer write
Hardware failure in modul
e
No power Turn off power. Remove and reinsert
Send configuration BTW
Return module for repair
modul
e into chassis. Return power. If problem still exists, and chassis power supply is functioning properly, return the module for repair.
Publication 1771-IN046B-EN-P - December 2003
18 Fast Analog Input Module

Specifications

Description Value
Inputs per module 16 single-ended; 8 differential low level
Module Location 1771 I/O chassis - 1 slot Input Voltage Ranges (nominal) +1 to +5V dc
0 to +5V dc
-5 to +5V dc
-10 to +10V dc 0 to +10V dc
Input Current Ranges (nominal) +4 to +20mA
0 to 20mA
-20 to +20mA
Resolution 12-bit binary
12 bits plus sign on bipolar ranges
Accuracy 1.0% of full scale range at 25°C
Linearity
Repeatability
Isolation Voltage Tested to 850V dc for 1s
Input overvoltage protection
Input overcurrent protection (current ranges)
Common mode voltage Input impedance >10 megohms (voltage ranges)
Common mode rejection 80db, dc - 120Hz
Current requirements 500mA at 5V dc from I/O chassis backplane
Power dissipation Backplane: 2.5W maximum; Inputs: 2.5W maximum
Thermal dissipation 17 BTU/hr maximum
Unscaled BCD and binary output to processor
+1 LSB
+1 LSB
35V maximum (voltage mode)
8V maximum (current mode)
30mA
+35V
250 ohms (current ranges)
0000 to 4095 for polar ranges (0-5V, 1-5V 0-20mA, and 4-20mA)
-409510 to +409510 for bipolar ranges (+5V, +10V,+ 20mA)
Publication 1771-IN046B-EN-P - December 2003
Engineering units sent to processor
Fastest internal scan rate 8 channels in less than 2ms (depending on number of
Environmental Conditions
Operational Temperature IEC 60068-2-1 (Test Ad, Operating Cold),
Storage Temperature IEC 60068-2-1 (Test Ab, Unpackaged Nonoperating Cold),
Relative Humidity IEC 60068-2-30 (Test Db, Unpackaged Nonoperating
+999910 with selectable scaling
oversamples, number of channels, and active features)
IEC 60068-2-2 (Test Bd, Operating Dry Heat), IEC 60068-2-14 (Test Nb, Operating Thermal Shock): 0 to 60°C (32 to 140°F)
IEC 60068-2-2 (Test Bb, Unpackaged Nonoperating Dry Heat), IEC 60068-2-14 (Test Na, Unpackaged Nonoperating Thermal Shock): -40 to 85°C (-40 to 185°F)
Damp Heat): 5 to 95% noncondensing
Fast Analog Input Module 19
Description Value
Shock
Operating
Non-operating
Vibration IEC 60068-2-6, (Test Fc, Operating)
ESD Immunity IEC 61000-4-2:
Radiated RF Immunity IEC 61000-4-3:
EFT/B Immunity IEC 61000-4-4:
Surge Transient Immunity IEC 61000-4-5:
Conducted RF Immunity IEC 61000-4-6:
Emissions CISPR 11
Enclosure Type Rating None (open-style)
Field Wiring Arm Cat. No. 1771-WG
Field Wiring Arm Screw Torque 9 pound-inches (1.0Nm) Conductors Wire Size
Category
Keying between 10 and 12
Certifications (when product is marked)
User Manual Publication 1771-6.5.116
1 Use this conductor category information for planning conductor routing as described in publication
1770-4.1, “Industrial Automation Wiring and Grounding Guidelines.”
2 See the Product Certification link at www.ab.com for Declaration of Conformity, Certificates, and
other certification details.
IEC 60068-2-27 (Test Ea, Unpackaged Shock) 30g peak acceleration 50g peak acceleration
2g @ 10-500Hz
4kV contact discharges
10V/m with 1kHz sine-wave 80%AM from 30MHz to 1000MHz
±1kV at 5kHz on signal ports
±2kV line-earth(CM) on shielded ports
10Vrms with 1kHz sine-wave 80%AM from 150kHz to 30MHz
Group 1, Class A (with appropriate enclosure)
14 AWG (2.5mm
2
) - 22 AWG (0.25mm2) solid or stranded copper
wire rated at 75°C or greater 3/64 inch (1.2mm) insulation maximum
1
2
between 24 and 26
UL - UL Listed Industrial Control Equipment CSA - CSA Certified Process Control Equipment CSA - CSA Certified Process Control Equipment for Class I,
Division 2, Groups A, B, C and D Hazardous locations
2 -
European Union 89/336/EEC EMC Directive,
CE
compliant with: EN 50082-2; Industrial Immunity EN 61000-6-2; Industrial Immunity EN 61000-6-4; Industrial Emissions EN 61326; Meas./Control/Lab., Industrial Requirements
2
- Australian Radiocommunications Act compliant with
C-Tick
AS/NZS CISPR 11, Industrial Emissions
Publication 1771-IN046B-EN-P - December 2003
Rockwell Automation Support
Rockwell Automation provides technical information on the web to assist you in using our products. At http://support.rockwellautomation.com, you can find technical manuals, a knowledge base of FAQs, technical and application notes, sample code and links to software service packs, and a MySupport feature that you can customize to make the best use of these tools.
For an additional level of technical phone support for installation, configuration and troubleshooting, we offer TechConnect Support programs. For more information, contact your local distributor or Rockwell Automation representative, or visit http://support.rockwellautomation.com.
Installation Assistance
If you experience a problem with a hardware module within the first 24 hours of installation, please review the information that's contained in this manual. You can also contact a special Customer Support number for initial help in getting your module up and running:
United States 1.440.646.3223
Monday – Friday, 8am – 5pm EST
Outside United States Please contact your local Rockwell Automation representative for any technical support issues.
New Product Satisfaction Return
Rockwell tests all of our products to ensure that they are fully operational when shipped from the manufacturing facility. However, if your product is not functioning and needs to be returned:
United States Contact your distributor. You must provide a Customer Support case number (see phone number
above to obtain one) to your distributor in order to complete the return process.
Outside United States Please contact your local Rockwell Automation representative for return procedure.
Publication 1771-IN046B-EN-P - December 2003 20 PN 957859-99
Supersedes Publication 1771-5.46 - May 1996 Copyright © 2003 Rockwell Automation, Inc . All rights reserved. Printed in the U.S.A.
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