BRUEL & KJAER 2131 - Remote Control of the 2131 Via the Remote Control Socket

5. REMOTE CONTROL OF THE 2131 VIA THE REMOTE CONTROL SOCKET
The 21 31 controls may be remotely sensed and controlled via its REMOTE CONTROL
socket, as
well as via its DIGITAL IN/OUT sockets and the IEC interface. On delivery the
21 31 is set such that the remote sensing and control takes place via the DIGITAL
IN / OUT sockets and the IEC interface. Conversion to remote sensing and control via the
REMOTE CONTROL socket requires moving the flat cable connector in the manner indi-
cated in Fig.5.1.
Move flat cable
connector to here
to give remote
programming via
REMOTE CONTROL
socket
760403
Fig.5. 1. Conversion between remote programming via the DIGITAL
IN/OUT socket and via the REMOTE CONTROL socket
When remote control of the 21 31 is via its REMOTE CONTROL socket,the IEC interface,
(Board ZD 0162), may be set to either its manual or its addressable mode, (see section
4.2). However, since operation with the interface set to its addressable mode would re-
quire that the 21 31 be addressed over the interface, practical considerations require
that the interface should, in most circumstances, be set to its manual mode. Remember
that in the manual mode, it is necessary to deaddress the interface by setting SYSTEM
RESET
between a digital input and a digital output, and vice versa.
When programming via the REMOTE CONTROL socket, SYSTEM RESET, the CHANNEL
SELECTOR, and
MEMORY FUNCTION "Protect" cannot be sensed. Also, MEMORY
FUNCTION "Store" can only be partially sensed, giving the correct response when it has
been set an even
number of times since the last system reset or power switch on. Note
65