Commissioning (initial start-up)
Operating Manual EM-PQ 2300
25
NOTE!
A terminating resistor must be activated
at each end of a single-line bus
. With
the EM PQ 2300, this is done with the configuration switch 1 (DIP switch 1).
When the switch is pressed down towards the base of the instrument, the
internal terminating resistor is switched in, otherwise the resistor is not in the
circuit.
In the EM PQ 2300 as delivered, the terminating resistor is activated
(configuration switch 1 down).
With the EM-FD 2500 Display, an internal terminating resistor can be activated
with the instrument's keys. The procedure is described in the EM-FD 2500
operating manual.
There must be
exactly two resistors switched in
! With any other number, the
bus communication will be disrupted.
If the two activated terminating resistors are not located at the end of the line, or
if the wrong number of resistors have been activated, this will upset
communication between the devices and the EM-FD 2500.
If these instructions are not complied with, data transmission may be disrupted. It is also
possible that no functioning data link can be established between the devices.
6.4.1 Activating the terminating resistor in the EM-FD 2500
The terminating resistor incorporated in the EM-FD 2500 is activated and deactivated using that instrument's
keys. Please refer to the EM-FD 2500 operating manual for the procedure.
NOTE!
In the EM-FD 2500 Display as delivered, the terminating resistor is activated.
An incorrect number of terminating resistors on the bus can disrupt data transmission. It is also
possible that no functioning data link can be established between the devices.
6.4.2 Activating the terminating resistors in other devices
Please refer to the appropriate operating manual for the procedure. As a rule, the FRAKO software Device
Manager is needed to perform this configuration.
6.4.3 Address assignment
The device addresses are assigned automatically on the CAN bus. The EM-FD 2500 Display operating manual
describes the interrogating procedure for the assigned addresses of the EM-FD 2500 Display and every other
connected device.
6.5 Installation of the FRAKO software Device Manager
Please note!
If FRAKONET is already installed on the PC, Device Manager cannot be installed as well. In this
case, install FRAKONET Version 1.22.0000 or a later version. These include Device Manager in
the software. Start Device Manager by selecting the EM-PQ 2300 in the SYSTEM-SW system tree
and then
‘Configure device’ in the context menu.
6.5.1 IT requirements
Hardware requirements:
IBM-compatible PC with a CPU of at least 2 GHz
1 GB RAM
200 MB free hard disk space
Network connection
