Endress+Hauser EngyVolt RV12, Operating Instructions Manual

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Commissioning EngyVolt RV12
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4. Press the or keys until the desired parameter is displayed.
5. Use the key to start configuring the parameter.
6. Proceed as described in the following sections.
Protocol - PROT
The multifunction electrical energy meter is designed for communication via the RS485
interface via Modbus RTU or alternatively via Metasys N2.
1. Use the and keys to choose from the following values: Modb (Modbus protocol),
N2 (Metasys N2 protocol)
2. Press the key to confirm your selection.
 If "N2" is selected, it is only possible to configure the device address (→  22).
The other communication parameters cannot be modified.
"SET" is displayed.
Setting the baud rate - bAUd
The baud rate needed for Modbus RTU communication via the RS485 interface is selected
in this function. Factory setting: "9600"
1. Use the and keys to choose from the following values: 2400, 4800, 9600,
19200, 38400.
2. Press the key to confirm your selection.
"SET" is displayed.
Setting the parity - PARI
This function sets the parity of the RS485 interface. Factory setting: "NONE"
1. Use the and keys to choose from the following values: None, Odd, Even.
2. Press the key to confirm your selection.
"SET" is displayed.
Stop bits - STOP
This function sets the number of stop bits for communication via the RS485 interface. As a
prerequisite, the parity must be set to "NONE". Factory setting: "1"
1. Use the and keys to choose from the following values: 1 = 1 stop bit, 2 = 2 stop
bits.
2. Press the key to confirm your selection.
"SET" is displayed.
Setting the device address - Addr
The device address must be configured for the multifunction electrical energy meter to
communicate in a Modbus RTU or a Metasys N2 network. Factory setting: "1", display: "001"
The possible setting for Modbus is between 1 and 247, and between 1 and 255 for
Metasys N2.
1. The first digit starts flashing once the parameter has been called up. Use the and
keys to set the desired value.
2. Press the key to confirm.
 The next digit starts flashing.
3. Set all 3 digits as required.
4. Press the key to confirm.