KROHNE optiplex 1300 c, Handbook

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Handbook OPTIFLEX 1300 C
OPTIFLEX 1300 C 34
Multi-drop (non-Ex)
RL = resistor, approx. 250 ohms
HART® communication protocol
In accordance with the Rosemount Standard, HART® communication can be used with this level meter. It is
used as a point-to-point connection between the slave (this level meter) and the HART® master or for multi-
drop networks for up to 15 devices.
Additional information
The following can be called up via the following interfaces:
•
current output: 3.6 or 22 mA for error signal according to NAMUR NE43 standard
•
digital HART® interfaces: scanning for error flags and messages
Changing from point-to-point to multi-drop network mode
The device's output 1 communicates by default in point-to-point mode (HART address 0). If you want the
device to communicate in multi-drop mode then you have to change the output's HART® address. Use the
following procedure
Procedure (using the display screen configuration wizard)
1. Enter Program Mode (press right button for three seconds)
2A. Either go to Quick Setup > Setup Mode > Outputs and go through the setup procedure until you get to
OP1 (output 1) HART Address
2B. Or go to Advanced Setup > Output 1 (HART) and find the menu item HART Address
3. Type in a value between 1 and 15 (default is 0 - point-to-point mode). This will switch output 1 over to
multi-drop mode.
4. Check that the outputs of other devices in the network to not have the same HART® address
5. Exit to Normal Mode
A definition of HART address is given in section 4.2.3: Setup; summary of user functions under C.4.5.0
HART address.
For further information on device operation and configuration, please refer to section 4.1: Operating concept
and section 4.2: Setup.