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EPS Stromversorgung GmbH
Alter Postweg 101 • 86159 Augsburg
Germany
Fon: +49 821 / 570451-0
Fax: +49 821 / 570451-25
www.eps-germany.de
PSI 9000 2U Series
3.5
Remote control
3.5.1
General
Remote control is possible via the built-in analog or USB port or via one of the optional interface modules (only
with standard models) or via the GPIB port (only with option 3W installed). Important here is that only the analog
or one digital interface can be in control. It means that if, for example, an attempt were to be made to switch to
remote control via the digital interface whilst analog remote control is active (Pin Remote = LOW) the device would
report an error via the digital interface. In the opposite direction, a switch-over via Pin Remote would be ignored.
In both cases, however, status monitoring and reading of values are always possible.
3.5.2
Control locations
Control locations are those locations from where the device can be controlled. Essentially there are two: at the
device (manual operation) and external (remote control). The following locations are defined:
Displayed location Description
-
If neither of the other locations is displayed then manual control is active and access from
the analog and digital interfaces is allowed. This location is not explicitly displayed
Remote
Remote control via any interface is active
Local
Remote control is locked, only manual operation is allowed.
Remote control may be allowed or inhibited using the setting
“Allow remote control”
). In inhibited condition the status
“Local”
will be displayed top right. Activating the lock can be useful if
the device is remotely controlled by software or some electronic device, but it is required to make adjustments at
the device or deal with emergency, which would not be possible remotely.
Activating condition
“Local”
causes the following:
•
If remote control via the digital interface is active (“
Remote
”), then it is immediately terminated and in order to
continue remote control once “
Local
” is no longer active, it has to be reactivated at the PC
•
If remote control via the analog interface is active (“
Remote
”), then it is temporarily interrupted until remote control
is allowed again by deactivating “
Local
”, because pin “Remote” continues to signal “remote control = on”, unless
this has been changed during the “
Local
” period
3.5.3
Remote control via a digital interface
3.5.3.1
Selecting an interface
The standard models of series PSI 9000 2U support, in addition to the built-in USB port, the following optional ly
available interface modules:
Short ID
Type
Ports Description*
IF-AB-CANO
CANopen
1
CANopen slave with generic EDS
IF-AB-RS232
RS232
1
Standard RS232, serial
IF-AB-PBUS
Profibus
1
Profibus DP-V1 slave
IF-AB-ETH1P
Ethernet
1
Ethernet TCP
IF-AB-PNET1P
ProfiNet
1
Profinet DP-V1 slave
IF-AB-MBUS
ModBus TCP 1
ModBus TCP protocol via Ethernet
IF-AB-ETH2P
Ethernet
2
Ethernet TCP, with switch
IF-AB-MBUS2P
ModBus TCP 2
ModBus TCP protocol via Ethernet, with switch
IF-AB-PNET2P
ProfiNet
2
Profinet DP-V1 slave, with switch
IF-AB-CAN
CAN
1
Modified ModBus RTU via CAN
* For technical details of the various modules see the extra documentation “Programming Guide Modbus & SCPI”
Models with option 3W installed offer an additional pre-installed GPIB port next to the default USB port.