Red Lion IAMS Data Sheet

GENERAL DESCRIPTION

The IAMS3535 Smart Analog to MODBUS Conditioner with Alarms
module accepts a wide range of DC analog process signals. There are eighteen
different DC analog input ranges which determine the input span and type. The
input accepts a maximum of 110 VDC and 110 mA DC.

The IAMS converts an analog input signal into a register format that can be
read using ASCII or RTU MODBUS protocol. With the features of gain and
offset, the input signal can be scaled to meet process requirements. Additionally,
two setpoint values can be entered for dual relay process monitoring alarms.

The IAMS is programmed with Windows

®

based SFIMS software. The
software allows configuration, calibration, and storage of IAMS program files.
Additionally, all setup parameters can be interrogated and modified through
MODBUS register and coil commands.

The RS485 port allows the IAMS to be multidropped, with Baud rates up to

38400. The CBPRO007 programming cable converts the RS232 port of a PC to
RS485, and is terminated with an RJ-11 connector. The bidirectional capability
of the CBPRO007 allows it to be used as a permanent interface cable as well as
a programming cable.

The IAMS’s two Form A relay alarms can be configured independently for
absolute high or low acting with balanced or unbalanced hysteresis. Alarm 2 can
also be configured for deviation and band alarms. In these modes, Setpoint 2
tracks Setpoint 1. Adjustable alarm trip delays can be used for delaying output
response. The alarms can be programmed for Automatic or Latching. Latched
alarms must be reset via serial command. A standby feature supresses the alarm
during power-up until the process stabilizes outside the alarm region. Standby
eliminates power-up tripping for low acting alarms. The output relays can also
be manually controlled via register commands.

The module’s high density packaging and DIN rail mounting saves time and
panel space. The module is equipped with a universal mounting foot for
attachment to standard DIN rails, including top hat (T) profile or G profile rail.

SAFETY SUMMARY

All safety related regulations, local codes and instructions that appear in the
manual or on equipment must be observed to ensure personal safety and to
prevent damage to either the instrument or equipment connected to it. If
equipment is used in a manner not specified by the manufacturer, the protection
provided by the equipment may be impaired.

ORDERING INFORMATION

SPECIFICATIONS

1. POWER: 18 to 36 VDC, 3.0 W max. or 24 VAC, ± 10%, 50/60 Hz, 4 VA max.

2. INPUT DC RANGES:

0-20 mV, 0-50 mV, 0-100 mV, 0-200 mV, 0-500 mV, 0-1V, 0-2 V, 0-5 V,

0-10 V, 0-20 V, 0-50 V, 0-100 V, 0-2 mA, 0-5 mA, 0-10 mA, 0-20 mA,

0-50 mA, 0-100 mA

3. MAX. INPUT SIGNAL:

Current Input: 110 mA DC

Voltage Inputs: Terminal 7: 1 VDC +10%

Terminal 8: 10 VDC +10%
Terminal 9: 100 VDC +10%

4. INPUT RESISTANCE:

Current: 10 Ohms

Voltage: greater than 100 K

5. INPUT PROTECTION: Surge suppressor diode

Current Terminal: Protected to 110 mA DC max., 1.1 VDC.

100 V Terminal: Protected to 110 VDC.

1 V & 10 V Terminal: Protected to 100 VDC for one minute.

6. INPUT COMMON MODE REJECTION: 50/60 Hz, 110 dB min.

7. ISOLATION LEVEL: 1.5 kV @ 50/60 Hz, 1 min. between input, RS485

and power supply. 2300 Vrms, 1 min. to relay contacts.

1

z ANALOG TO MODBUS CONVERSION

z 18 DIFFERENT DC ANALOG INPUT RANGES

z PROCESSOR BASED SCALING

z PC CONFIGURATION SOFTWARE

z DUAL SETPOINT RELAY ALARMS

z FOUR WAY SIGNAL ISOLATION

MODEL IAMS - INTELLIGENT ANALOG TO MODBUS CONDITIONER W/ ALARMS

IAMS

DESCRIPTION

Smart Analog to Modbus Conditioner w/Alarms

PART NUMBER

IAMS3535

CBPRO

SFIMS

Programming Interface Cable

PC Configuration Software for Windows

CBPRO007

SFIMS

-

CBJ

RJ11 to Terminal Adapter

Cable RJ11 to Unterminated 7 foot length

DRRJ11T6

CBJ11A07

Cable RJ11 to RJ11 6 inch jumper CBJ11BD5

DIMENSIONS In inches (mm)

CAUTION: Risk of Danger

Read complete instructions prior to

installationand operation of the unit.

CAUTION: Risk of electric shock.

UL Recognized Component,
File # E179259

MODEL NO.

2

8. SERIAL COMMUNICATIONS:
Type: RS485, MODBUS RTU and ASCII modes
Baud: 300, 600, 1200, 2400, 4800, 9600, 19.2K, and 38.4K
Format: 7/8 bit, odd, even and no parity
Transmit Delay: Programmable. (See Transmit Delay explanation in Step 6)
Transmit Enable (TXEN): (primarily for 20 mA loop converter)
V

OH

= 10 VDC max. VOL= 0.5 VDC @ 5 mA max. current limit

9. A/D CONVERTER: 16 bit resolution

10. ACCURACY (including linearity): 0.1% of span

11. RESOLUTION: 0.002% of span

12. GAIN / OFFSET: Programmable

13. RELAY OUTPUTS:

Type: 2 Form A N.O. contacts
Rating: 5A @ 30 VDC or 250 VAC max. (resistive)

1/10 HP @ 120 VAC (inductive)
Response Time: 155 msec. max. to close including step response, 153 msec.
max. to open.

14. OUTPUT ON DELAY TIME: Programmable from 0 to 32000 sec,
±0.01% - 1 sec. max.

15. MEMORY: Nonvolatile E2PROM retains all programmable parameters.

16. ENVIRONMENTAL CONDITIONS:

Operating Temperature Range: -20 to +65 °C
Storage Temperature Range: -40 to +85 °C
Operating and Storage Humidity: 85% max. relative humidity (non­condensing) from -20 to +65 °C
Temperature Coefficient: +0.01%/ °C (100 PPM °C) max.
Altitude: Up to 2000 meters

17. CERTIFICATIONS AND COMPLIANCE:
SAFETY

UL Recognized Component, File # E179259, UL3101-1, CSA 22.2 No. 1010-1

Recognized to U.S. and Canadian requirements under the Component
Recognition Program of Underwriters Laboratories, Inc.

IECEE CB Scheme Test Certificate # US/5141A/UL,

CB Scheme Test Report # 01ME11540-0702001

Issued by Underwriters Laboratories, Inc.

IEC 61010-1, EN 61010-1: Safety requirements for electrical equipment

for measurement, control, and laboratory use, Part 1.

ELECTROMAGNETIC COMPATIBILITY

Notes:

1. This device was designed for installation in an enclosure. To avoid

electrostatic discharge to the module in environments with static levels
above 6 KV, precautions should be taken when the device is mounted
outside an enclosure. When working in an enclosure (ex. making
connections, etc.), typical anti-static precautions should be observed
before touching the module.

Refer to the EMC Installation Guidelines section of this bulletin for

additional information.

18. CONSTRUCTION: Case body is black high impact plastic. Installation
Category II, Pollution Degree 2.

19. CONNECTIONS: 14 AWG max.

20. MOUNTING: Universal mounting foot for attachment to standard DIN

style mounting rails, including top hat (T) profile rail according to EN50022

- 35 x 7.5 and - 35 x 15, and G profile rail according to EN50035 - G32.

21. WEIGHT: 4.5 oz. (127.57 g)

MODULE ISOLATION

The IAMS features “4-way” signal isolation. The 4-way isolation is a

combination of optical, transformer and relay barriers, providing common mode
voltage (CMV) isolation to 1.5 KV for 1 minute between input, RS485, and
power supply. Isolation between relay contacts and all other inputs is 2300 Vrms
for 1 minute.

LED FUNCTIONALITY

Power mains class A

Enclosure class AEN 55011RF interference

Emissions to EN 55011

Level 3; 10 V/mENV 50204Simulation of cordless telephone

150 KHz - 80 MHz

Level 3; 10 V/rms EN 61000-4-6RF conducted interference

Level 3; 2 KV power

Level 4; 2 KV I/O EN 61000-4-4Fast transients (burst)

80 MHz - 1 GHz

Level 3; 10 V/MEN 61000-4-3Electromagnetic RF fields

Level 3; 8 KV air

1

Level 2; 4 KV contact EN 61000-4-2Electrostatic discharge

200 Hz, 50% duty cycle

Immunity to EN 50082-2

900 MHz ± 5 MHz

CONDITION GREEN LED 2 RED LEDS

Power Applied On ———
Communication Received Flashing ———
Respective Alarm ——— On
Checksum error Flashing Flashing
Calibration Off On

BLOCK DIAGRAM

3

WIRING CONNECTIONS

All conductors should meet voltage and current ratings for each terminal.
Also, cabling should conform to appropriate standards of good installation,
local codes and regulations. When wiring the module, use the numbers on the
label to identify the position number with the proper function. Strip the wire,
leaving approximately 1/4" (6 mm) of bare wire exposed. Insert the wire into
the terminal, and tighten the screw until the wire is clamped tightly. (Pull wire
to verify tightness.) Each terminal can accept up to one #14 AWG (2.55 mm),
two #18 AWG (1.02 mm), or four #20 AWG (0.61 mm) wires.

MODULE POWER CONNECTIONS

Module power is connected to terminals 1 and 2. For best results, the power
should be relatively “clean” and within the specified limits. Drawing power
from heavily loaded circuits or from circuits that also power loads that cycle on
and off should be avoided. It is recommended that power supplied to the module
be protected by a fuse or circuit breaker.

INPUT CONNECTIONS

Current Input

Wiring for a current input is
connected to terminals 10 (+) and 12 (-).

Terminal 10 (+): 100 mA

Voltage Input

Wiring for a voltage input is
connected to terminal 12 (-) and one of
the voltage terminals listed below.

Terminal 7 (+): 1 VDC max.

Terminal 8 (+): 10 VDC max.

Terminal 9 (+): 100 VDC max.

RELAY OUTPUT CONNECTIONS

There are two Form A output relays. The wiring for Relay 1 is connected
between terminals 5 and 6. The wiring for Relay 2 is connected between
terminals 3 and 4.

To prolong contact life and suppress electrical noise interference due to the
switching of inductive loads, it is good installation practice to install a snubber
across the contactor. Follow the manufacturer’s instructions for installation.

Note: Snubber leakage current can cause some high impedance loads to be

held ON.

DEFAULT SERIAL SETTING CONNECTION

If the IAMS settings are unknown, or forgotten, they can be reset to the
factory defaults by connecting the Serial Default terminal 11 to Input Comm.
terminal 12 with a jumper, and then cycling power.

DEFAULTS:

RS485 SERIAL CONNECTIONS

There are two RJ-11 connectors located on the bottom for paralleling
communications. For single device communications, either connector can be
used. When used in conjunction with Red Lion Control Paradigm HMI
products, reverse A+ and B- wiring.

RJ11 IAMS

1 Not used

2B-

3A+

4 COMM

5 TXEN

6

2345

Not used

IAMS CONNECTOR

STEP 1 WIRING THE MODULE

Protocol: RTU

Address: 247

Baud Rate: 9600

Data Bits:

Parity:8none

Although this unit is designed with a high degree of immunity to Electro­Magnetic Interference (EMI), proper installation and wiring methods must be
followed to ensure compatibility in each application. The type of the electrical
noise, source or coupling method into the unit may be different for various
installations. Cable length, routing, and shield termination are very important
and can mean the difference between a successful or troublesome installation.

Listed below are some EMC guidelines for successful installation in an
industrial environment.

1. Use shielded (screened) cables for all Signal and Control inputs. The shield

(screen) pigtail connection should be made as short as possible. The

connection point for the shield depends somewhat upon the application.

Listed below are the recommended methods of connecting the shield, in order

of their effectiveness.

a. Connect the shield only at the rail where the unit is mounted to earth

ground (protective earth).

b. Connect the shield to earth ground at both ends of the cable, usually when

the noise source frequency is above 1 MHz.

c. Connect the shield to common of the unit and leave the other end of the

shield unconnected and insulated from earth ground.

2. Never run Signal or Control cables in the same conduit or raceway with AC

power lines, conductors feeding motors, solenoids, SCR controls, and

heaters, etc. The cables should be run in metal conduit that is properly

grounded. This is especially useful in applications where cable runs are long

and portable two-way radios are used in close proximity or if the installation

is near a commercial radio transmitter.

3. Signal or Control cables within an enclosure should be routed as far
away as possible from contactors, control relays, transformers, and other
noisy components.

4. In extremely high EMI environments, the use of external EMI
suppression devices, such as ferrite suppression cores, is effective.
Install them on Signal and Control cables as close to the unit as possible.
Loop the cable through the core several times or use multiple cores on
each cable for additional protection. Install line filters on the power
input cable to the unit to suppress power line interference. Install them
near the power entry point of the enclosure. The following EMI
suppression devices (or equivalent) are recommended:
Ferrite Suppression Cores for signal and control cables:

Fair-Rite # 0443167251 (RLC # FCOR0000)
TDK # ZCAT3035-1330A
Steward # 28B2029-0A0
Line Filters for input power cables:
Schaffner # FN610-1/07 (RLC # LFIL0000)
Schaffner # FN670-1.8/07
Corcom # 1 VR3

Note: Reference manufacturer’s instructions when installing a line filter.

5. Long cable runs are more susceptible to EMI pickup than short cable runs.
Therefore, keep cable runs as short as possible.

EMC INSTALLATION GUIDELINES

4

STEP 4 PROGRAMMING THE INPUT

The IAMS receives an analog input, converts it to a raw digital value, and stores this number in the ADC Value (register 40001). This number is scaled
into engineering units using the Gain Value (register 40010) and Offset Value (register 40011). The result of this scaling is stored as the Process Value
(register 40002). It is also stored in the IEEE 754 Standard 32-bit floating decimal format (register 40003 and 40004). The non-scaled ADC, the scaled
Process value, or the Floating point value may be accessed for the purpose of monitoring the input level.

INPUT
SIGNAL

ADC READING

Register 40001

INTERNAL

MATH

GAIN/OFFSET

PROCESS

VALUE

IEEE STANDARD 754

FLOATING DECIMAL POINT

LO Order Byte

HI Order Byte

Register 40003
Register 40004

Register 40002

Register
40010/40011

Input Range: Select the desired input range from the pull down menu.

Gain & Offset: The Gain & Offset values are used to scale the input signal into

engineering units. The result is stored in the Process Value register. To determine the
Gain and Offset for your application, use the Scaling Wizard button.

STEP 3 PROGRAMMING - Getting Started

Run RLCPro by double-clicking the icon, or use the start menu.

Use the FILE pull-down menu

to select a NEW file.

You will be prompted to

select the proper device,

and then the model.

STEP 2 INSTALLING SFIMS

(Software for Intelligent Modules)

Insert the SFIMS diskette into the A: or B: drive. Then Run A:\SETUP
(or B:\SETUP) to install RLCPro onto the hard drive. An icon labeled
RLCPro will be created under the group RLCPro.

5

Filter Response: The Filter Response is a time constant, in tenth of second increments, that is used

to stabilize an erratic input. The Process value stabilizes to 99% of the final value within
approximately 5 time constants. A value of ‘0’ disables digital filtering.

Filter Band: Filter Band is a value expressed in Process units. When a fluctuating signal remains

within the band value, the Digital Filter is active, and therefore stabilizes the Process Value.
When a fluctuating signal exceeds the Filter Band value, the Digital Filter is momentarily
disabled to allow for a quick response to valid process changes. Once the signal variation is less
than the Filter Band value, the Digital Filter is reactivated.

The Scaling Wizard prompts you to enter four values. Simply key in the Minimum and
Maximum signal Input Values, and the desired Process Value equivalents. Press the Next
button to calculate the new Gain and Offset values.

Note: The Process Values must be between –32000 and +32000. (negative values will be

transmitted as 2’s complement)

Once the Next key is pressed, the software will display the new Gain and Offset values.
It will also display the exact Process Value result for your input signal. The Process values
may be different than those previously entered due to the resolution of the Gain and Offset
values. Press the Accept button to have the Gain and Offset values entered into the Input
Setup screen. When a download is performed, the Gain and Offset values are written to
registers 40010 and 40011 respectively.

STEP 5 PROGRAMMING THE ALARMS

Action: Alarm 1 can be programmed for 5 modes of operation, Alarm 2 has 8 possible modes.

Manual: In Manual mode, the Alarms are forced on and off by writing ‘0’ or ‘1’ to the appropriate

MODBUS register (Alarm 1 state = 40024, Alarm 2 state = 40025).

Absolute HI: (with balanced or unbalanced hysteresis) The Alarm energizes when the Process exceeds the

Setpoint Limit Value.

Absolute LO: (with balanced or unbalanced hysteresis) The Alarm energizes when the Process falls below

the Setpoint Limit Value.

Deviation HI, Deviation LO, Band Outside: In these modes, Alarm 2 “tracks” Alarm/Setpoint 1. (See

Setpoint ALarm Figures below.)

Setpoint: The Alarm setpoint, entered in scaled Process units.

Hysteresis: Hysteresis is used to eliminate output chatter. The Hysteresis Amount is the difference between

the points that an Alarm will “turn on” and “turn off”. In Unbalanced modes, the alarm turns on at the
Setpoint, and turns off at Setpoint-HYS for HI alarms, and Setpoint+HYS for LO alarms. In Balanced
modes, the Hysteresis is evenly divided above and below the Setpoint value. (See the Setpoint Alarm
Figures below) The software calculates the hysteresis percentage and displays it for you.

Note: The Setpoint, along with the Hysteresis, MUST NOT produce a “trip point” higher than 32,000, or

less than -32,000. (See the Setpoint Alarm Figures below)

Reset: The alarms can be programmed for Latched or Automatic. In Automatic mode, an energized alarm

turns off by itself once the Process leaves the alarm area. In Latched mode, an energized alarm requires
a serial reset. This is done by writing a ‘0’ to the appropriate MODBUS register. (Alarm 1 state = 40024,
Alarm 2 state = 40025)

On Delay: The time, in whole second increments, that the alarm will take to energize when the Process

Value crosses into an alarm state area.

Enable Standby Delay: Standby prevents nuisance (typically low level) alarms after a power up. After

powering up the unit, the Process must stabilize outside the alarm region. Once this has occurred, the
standby is disabled, and the alarm responds normally until the next module power up.