heinzinger ERS Compact Series, User Manual, Page: 68 / 114

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Page 68
ERS COMPACT
3.6 Remote control
3.6.1 General
Remote control is possible via one of the built-in interfaces (analog, USB, Ethernet) or via one of the optional
interface modules. One of the digital interface is the master-slave bus. It means that a Slave model is supposed
to be controlled from a master unit via the master-slave bus. Controlling a Slave device via its rear USB port is
considered an exception.
Important here is that only the analog or any digital interface can be in control. It means that if an attempt was 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. However, status monitoring and reading of values are always possible.
3.6.2 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
Remote: None If neither of the other locations is displayed then manual control is active and
access from the analog and digital interfaces is allowed.
Remote: <interface_name>
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” (see
“3.5.3.1. Sub menu
“Settings”” ). 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’s required to make adjustments at
the device or deal with emergency.
Activating condition Local causes the following:
• If remote control via the digital interface is active (e. g.
Remote: USB
), then it’s 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is no longer active, it has to be reactivated at the PC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: Analog
), then it’s 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.
3.6.3 Remote control via a digital interface
3.6.3.1 Selecting an interface
The standard models of series ERSC 10000 support, in addition to the built-in USB and Ethernet ports, the following
optionally 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-PNET1P
ProfiNet
1
Profinet DP-V1 slave
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 Standard EtherCAT slave with CoE
IF-AB-MBUS ModBus TCP
1
ModBus TCP protocol via Ethernet
IF-AB-MBUS2P ModBus TCP
2
ModBus TCP protocol via Ethernet
* For technical details of the various modules see the extra documentation “Programming Guide Modbus & SCPI”
3.6.3.2 Programming
Programming details for the rear interfaces of standard models, the communication protocols etc. are to be found
in the documentation “Programming Guide ModBus & SCPI“ which is supplied on the included USB stick or which
is available as download from the manufacturer’s website.