CAEN
Electronic Instrumentation
UM2619 – N1419 User Manual
24
Remote Control
Module control can take place remotely, via USB or RS485; the latter allows to build a N1419s’ daisy chain network.
The CAEN NIM8301 7U 12 Slot Smart Fan Unit 300/600 W Crate allows also to communicate with the module via
Ethernet.
Serial Links
USB communication
Fig. 40: USB communication diagram
The module is provided with a USB2.0 compliant interface (see p.10). The N1419 can be programmed via PC by
connecting the PC USB port with the N1419 USB B-type port; the featured controller, the FT232BM chip requires
drivers freely available at
www.ftdichip.com
(Drivers section); the site also provides installation instructions for all
OS’s (Documents section)
The connection can be performed via terminal emulator, such as HyperTerminal,
configured as follows:
-
baud rate 9600 (the same set on the N1419! See p.18)
-
Data bits: 8
-
Parity: none
-
stop bit: 1
-
Flow control: Xon Xoff
It is also possible to build a daisy chain of up to 32 N1419’s, with the first module connected to the PC USB port and
the subsequent ones daisy chained through the COMM IN/OUT, as explained on p.30 ; in this case communication
with the chained modules is achieved through the USB - RS485 Communication Protocol, see p.30. All modules must
be assigned a LOCAL BUS ADDRESS (see p.15) different from one another and the last one must be terminated (see
p.36).
RS232 communication
Fig. 41: RS232 communication diagram
In order to control the module via RS232 it is necessary to use the module’s COMM IN port (refer to p.12 for RS232
signals) and to follow adaptation instructions (see p.36).
The connection can be performed via terminal emulator, such as HyperTerminal,
configured as follows:
-
baud rate 9600 (the same set on the N1419! See p.15)
-
Data bits: 8
-
Parity: none
-
stop bit: 1
-
Flow control: Xon Xoff
