Regulus uREG, User Manual

Page: 89 / 107

uREG User Manual
89
16. COMMUNICATION
u REG
units are equipped with a full set of the most common communication interfaces, i.e.:

accessible in the link panel: (see → 8. Operator panel)

RS 232 serial (acc. to definitions of EIA RS-232C),

USB 2.0 (Universal Serial Bus);

accessible in the IF-x module of the link: (see → 7.1. IF-x module)

Ethernet (network link) 10/100BASE-T ETH ,

basic serial RS-485 in standard RS-485 (RS-422),

auxiliary serial AUX-485 in standard RS-485 (RS-422),

serial (panel) PANEL in standard RS-485 .
CAUTION:
All communication interfaces are provided with full galvanic insulation (except
USB).
16.1. GENERAL COMMUNICATION RULES
Information interchange via communication links takes place during normal operation of
the device and does not limit any functions.
uREG
communication features depend on the interface type and the corresponding
protocol selected. In each single case,
uREG
communicates with a supervisory computer
system via serial data transmission, simultaneously in both directions (full-duplex) or in one
direction at a time (half-duplex).
For transmission protocols via Ethernet, the connection is established according to general
rules conforming to relevant standards. With the intended use of the device, it is recommended
to use the device within private local networks.
For protocols using RS485 interface,
uREG
does not initiate transmission (except special
cases). The task to establish and maintain communication is delegated to the supervisory
system, whereas
uREG
waits for an incoming message with instructions. Therefore, the device
monitors the receiving line in each active interface to accept the message and immediately
sends a response (once ready) to the transmission line of the same interface.