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Aoms 4u

The document provides specifications for the AOMS-4U and AOMS-8U Analog Output Modules, which feature 4 or 8 independently programmable analog output channels for DC current and voltage. It highlights key features such as 14-bit resolution, MODBUS communication, and three-way isolation to prevent ground loops. The modules are designed for DIN-Rail mounting and operate within a wide voltage range, making them suitable for various industrial applications.

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Matthew Kuttikad
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26 views3 pages

Aoms 4u

The document provides specifications for the AOMS-4U and AOMS-8U Analog Output Modules, which feature 4 or 8 independently programmable analog output channels for DC current and voltage. It highlights key features such as 14-bit resolution, MODBUS communication, and three-way isolation to prevent ground loops. The modules are designed for DIN-Rail mounting and operate within a wide voltage range, making them suitable for various industrial applications.

Uploaded by

Matthew Kuttikad
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Analog Output Module

Process Precision Instruments


AOMS-4U / AOMS-8U
Vasai Road (E), Dist. Palghar - 401210,
4 / 8 Channels
Maharashtra, India
DIN-Rail Mount
MODBUS over Serial www.ppiindia.net

AOMS-8U AOMS-4U Configuration Tool

CPU STS
CPU STS
COMM

COMM

OP STS
OP STS

AOMS AOMS

ISOLATION HI-SPEED 14 BIT COMPACT MODBUS SETUP PC TOOL DIN RAIL

Salient Features General Information

4 / 8 Channel DIN-Rail Analog Output Module


Ÿ 4 (AOMS-4U) or 8 (AOMS-8U) Analog Output Channels Product Type
MODBUS over RS485 Serial Interface
Ÿ Each Channel Independently Programmable for DC Current
AOMS-4U, 4 Channel Module
(0-20 mA, 4-20 mA & 0-10 mA) or Voltage (0-5 V, 1-5 V & 0- Ordering Code
AOMS-8U, 8 Channel Module
10 V) Output
Quantity 1 Unit
Ÿ 14 Bit Output Signal Resolution
Ÿ Programmable Min / Max Counts Corresponding to Signal Accessories (Optional) USB to RS485 Convertor
Low & Signal High Outputs Similar Modules AIMS-4X, AIMS-8X
Ÿ Programmable Fail-Safe Output Signal Level Against DIMS-8, DIMS-16
Communication Link Failure DOMS-12

Ÿ Three-way Isolation Eliminates Potential Ground Loops


between Power, Outputs and RS485 Serial Port
Ÿ Supports Coils (Bits) & Bit-Mapped Registers MODBUS Data
Type for Most Parameters
Ÿ 2-wire, Half-Duplex, Start-Stop Synchronized RS485 Serial
Port
Ÿ Industry Standard MODBUS RTU Protocol with Programmable
ID, Baud Rate & Parity
Ÿ Compact DIN-Rail Mount Enclosure : 22.5(W) X 101(H) X
119(D), mm
Ÿ Wide Supply Voltage Range : 18 ~ 32 VDC (24 VDC Nominal)
Ÿ Free PC Tool for Easy Configuration and Parameter Settings

PPI \ E Catalog 1
Analog Output Module
Channel Specifications

Number of Channels 4/8


Output Types DC mA : 0-20 mA, 4-20 mA, 0-10 mA
(Programmable) DC Volts : 0 to 5V, 1 to 5V, 0 to 10V

Accuracy Better than ± 0.1% of Span


Resolution Better than 14 Bit
Response Time 150 mS typical for output signal to reach 98% of final value
(Step Change) (Actual response time will change with load type / value)

Output Burden Current : 0-600 Ω typical Voltage : 1 KΩ Minimum


Isolation Three-way Isolation Eliminates Potential Ground Loops between Power, Outputs & RS485 Serial Port
1500VAC for 1 second or 250VAC continuous
Scaling Programmable Minimum & Maximum Counts (-30,000 to +30,000) Corresponding to Signal
(User Programmable) Low & Signal High Outputs

Fail-Safe Mode The Outputs hold programmed Signal Level upon Communication link failure for more than
programmed time period (1 to 300 Sec.)

Serial Communication

Port RS485, 2-wire, Half Duplex, Start-Stop Synchronized


Protocol MODBUS RTU
Baud Rate Settable : 2400, 4800, 9600, 19200, 38400
Parity Settable : None, Even, Odd
Max. Units per Loop 31
Max. Distance 1200 Meters

Power Supply

Type Switch Mode (SMPS)


Power Requirement 18 ~ 32 VDC, nominal 24 VDC @ 300mA Max.
Note : In case of looping multiple modules on one power source, make sure that the power
source is capable of supplying minimum 300mA current per module.

Consumption 7 VA Max @ 24 VDC

Physical

Mounting DIN-Rail
Overall Dimensions 22.5(W) X 101(H) X 119(D), mm
Terminals Screw Type, Pluggable
Weight 400 gm, Appx.

Environmental

Operating Ambient 0 to 55°C & 5 to 90%RH Non-condensing


Storage Temperature -10 to +70°C
Not Suitable for use in Corrosive or Explosive Atmospheres. The Panel in which the Instrument
Atmospheres
is Mounted must be free of Electrically Conductive Pollution.

PPI \ E Catalog 2
Analog Output Module
Terminations

4 Channel Module

34 35 36 37 30 31 32 33 26 27 28 29 22 23 24 25
- + - + - + - + - + - + - + - +
V mA V mA V mA V mA
AO-8 AO-7 AO-6 AO-5

Signal Connections
4 Channels

8 Channels

T1 T2 T3 T4

T1 T2 T3 T4
-
Analog Output

V
AO-X

- +
mA
+
Supply
AO-1 AO-2 AO-3 AO-4 RS485 18 ~ 32 VDC
mA V mA V mA V mA V
+ - + - + - + - + - + - + - + -
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

8 Channel Module

34 35 36 37 30 31 32 33 26 27 28 29 22 23 24 25
- + - + - + - + - + - + - + - +
V mA V mA V mA V mA
AO-8 AO-7 AO-6 AO-5
Signal Connections
4 Channels

8 Channels

T1 T2 T3 T4

T1 T2 T3 T4
-
Analog Output

V
AO-X

- +
mA
+

Supply
AO-1 AO-2 AO-3 AO-4 RS485 18 ~ 32 VDC
mA V mA V mA V mA V
+ - + - + - + - + - + - + - + -
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

ProcessPrecisionInstruments(AnISO9001:2008Company)
101,DiamondIndustrialEstate,Navghar,VasaiRoad(E),Dist.Palghar-401210,Maharashtra,India
Sales:8208199048/8208141446Support:07498799226/08767395333
sales@ppiindia.net www.ppiindia.net

Jul 2023

PPI \ E Catalog 3

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