Inhaltsverzeichnis
Werbung
Verfügbare Sprachen
Verfügbare Sprachen
Technical data Modbus
Bus system
Transmission rate
Transmission mode
Bus length (max.)
Response time:
(to system response)
The communication is ready 30 s after the power on
■
The use of energy meter in bus with intensive communication could reduce the performance of the bus
■
Refresh time for the data is 5 s. For this reason one energy meter should be not polled faster as 5 s
■
247 devices could be connected to the Modbus. With more than 128 devices, a repeater should be used
■
■
The interface don't have a terminal resistor, this must be provided external
■
For a description of the used registers please look at the register page
Data transmission
■
Only «Read Holding Registers [03]/ Write Multiple Registers [16]» instructions are recognized.
■
Up to 20 Registers can be read at a time.
■
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.
Changing the Modbus direct on device
■
In the menu, go for «U»
■
Push long ( ≥ 3 sec) «Adr»
■
Push short "address +1", push long "address +10"
Once the desired address is selected wait, to validate, till the root menu to come back
■
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
Route Jo-Siffert 4
1762 Givisiez / Switzerland
Phone
+41 26 580 30 00
Fax
+41 26 580 34 99
Subject to change without notice.
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:
up to 60 ms
Read:
up to 60 ms
English
Werbung
Inhaltsverzeichnis
