Data Transmission; Exception Responses - Honeywell EEM400-D-MO Montage- Und Bedienungsanleitung

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Technical data Modbus
Bus system
Transmission rate
Transmission mode
Bus length (max.)
Response time:
(to system response)
The Interface works only if the Phase 1 is connected.
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The communication is ready 30s after the Power On
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■ The use of Energy meter in Bus with intensive communication could reduce the performance of the Bus
■ Refresh Time for the Data is 10 s. For this reason one energy meter should be not polled faster as 10s.
■ 247 devices could be connected to the Modbus. Over 128 Devices, a repeater should be used.
The Interface don't have a terminal resistor, this should be provided external.
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For a description of the used registers please look at the Register Page.
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Data transmission

Only «Read Holding Registers [03]/ Write Multiple Registers [16]» instructions are recognized.
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Up to 20 Registers can be read at a time.
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■ The device supports broadcast messages.
■ In accordance with the Modbus protocol, a register R is numbered as R - 1 when transmitted.
■ The device has a voltage monitoring system. In case of voltage loss, registers are stored in EEPROM
(transmission rate, etc.)

Exception Responses

■ ILLEGAL FUNCTION [01]: The function code is not implemented.
■ ILLEGAL DATA ADDRESS [02]: The address of some requested registers is out of range
or more than 20 registers have been requested.
■ ILLEGAL DATA VALUE [03]: The value in the data field is invalid for the referenced register.
Change the Modbus address direct on device
To modify the Modbus address, press 3 sec on ► touch
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In menu, ▼ increase address by 10, ► increase by 1
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Once the address is selected wait for the root menu to come back
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Manufactured for and on behalf of the Environmental and Combustion Controls Division of Honeywell Technologies Sàrl, Rolle, Z.A. La Pièce 16,
Switzerland by its Authorized Representative:
Saia-Burgess Controls AG
Bahnhofstrasse 18
CH-3280 Murten / Switzerland
Phone
Fax
Subject to change without notice. Printed in Switzerland
Modbus, RTU according to IDA specification
4800-9600-19 200-38 400-57 600-115 200.
The transmission Baud rate is automatically detected
Even parity: 8 data bits, 1 stop bit
Odd parity: 8 data bits, 1 stop bit
No parity: 8 data bits, 2 stop bits
The transmission Mode is automatically detected
1200 m (without repeater)
Write: 60 ms
Read: 60 ms
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