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EA Elektro-Automatik GmbH
Helmholtzstr. 31-37 • 41747 Viersen
Germany
Fon: +49 2162 / 3785-0
Fax: +49 2162 / 16230
www.elektroautomatik.de
EL 9000 B 15U/24U Series
3.5
Remote control
3.5.1 General
In this cabinet device, remote control is only considered for the master unit. Slave unit can only be monitored, by
any available interface. Remotely controlling the master is possible via its built-in analog or USB port or via one of
the optional interface modules (IF-AB series).
Important here is that only the analog or one digital interface can be in control. It means that if, for example, an at
-
tempt 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 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 control 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 inhibit 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” is no longer active, it has to be reactivated at the PC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
All models of series EL 9000 B 15U/24U support the following optionally available interface modules in the interface
slot on the master unit:
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
IF-AB-ETH2P
Ethernet
2
Ethernet TCP, with switch
IF-AB-MBUS2P
ModBus TCP
2
ModBus TCP, with switch
IF-AB-PNET2P
ProfiNet
2
Profinet DP-V1 slave, with switch
IF-AB-CAN
CAN
1
CAN 2.0 A / 2.0 B
IF-AB-ECT
EtherCAT
2
EtherCAT with CANopen over Ethernet
* For technical details of the various modules see the extra documentation “Programming Guide Modbus & SCPI”
