User manual
Document nr. : 021865
Version : V2.1
Alfanet PC-interface 2e gen.
Client : General
Page : 3 of 12
1.
Technical specifications
General
Types
: ALFANET PC INTERF.2 RT+MEM
ALFANET PC INTERF.2 USB
ALFANET PC INTERF.2+ USB EM (2MB)
ALFANET PC INTERF.2+ EM (2MB)
Housing
: Grey plastic housing
Material
: Polystyrol 454h KG 2 natur BASF
Dimensions
: 130 x 180 x 80 mm (whd)
Cable inlet
: Thru turnbuckles
Cable connection
: On coded screw terminals behind connection cover
Front
: Polycarbonate
Supply
: 230 Vac; 50/60 Hz (-10/+5%).
Used Power
: 3.8 VA
Operation temperature
: -20/+50
E
C
Store temperature
: -20/+60
E
C
Operation rel. humidity : 10/+90 % RH not condensing
Front
Display
: 4-digit display for clock with 7 day LED’s
Keys
: SET key
DOWN key
UP key
LED's
: Alarm (Red)
Network (Yellow)
% Percent buffer full (Green)
In- and Outputs
Relays
: RY 1 : Alarm . . . . . . . . . . . . . . . . . (C/NO/NC 250Vac/10A not inductive)
RY 2 : LOG Buffer full . . . . . . . . . . (C/NO/NC 250Vac/10A not inductive)
Communication
: RS 485 (9600 Baud) to ALFANET (2xTwisted-pair shielded, min. 0,5mm
2
)
RS 232 (19200 Baud) or USB for communication to PC . . . . . . (Modem)
Software
PC Software
: V2.0.0 or higher
2
Functional specifications
The Alfanet PC-Interface 2e gen. is provided with a real-time clock and display. This interface has
been developed as an intelligent interface between a Personal Computer (PC) and the RS485
network. The interface takes care of the communication between the PC and the network and is in
principle a transparent intermediary for messages from PC to the RS485 network and vice versa.
The interface can also store messages and log data in its internal buffer when the PC is not available
for communication with the interface or in case the PC is turned off.
Of all the messages coming from cool panels there are two messages to activate the relays on the
interface;
1) an alarm message to active relay 1
2) a log-buffer full message to active relay 2
The communication program for the PC requires MS Windows
®
.
