INFICON Composer Gas Concentration Controller - Manual (Page 121)

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Composer Operating Manual
4.3.6.3 POWER Connector
A DB-9 connector used for connection to a 24 volt power supply. Refer to
section 1.7 on page 1-7 for a full description of the power supply requirements
and pin connections.
4.3.6.4 Option Connector
A DB-9 connector used for:
Š Bulk Flow Control configuration: for providing Concentration read back
output and MFC read-back input.
Š Concentration Control configuration: to provide concentration output for a
Composer using dilution flow in the concentration control mode.
4.3.6.5 CFGR1
The first of 2 eight contact binary switch blocks used for activating various
features. The state of these switches is only read when power is first applied to
the Controller. See
Table 4-3 for the configuration switch number descriptions
and Table 4-4 for the baud rates.
NOTE: Changing the state of a switch while the Controller is powered on does
not result in a change of the selected features. Switch status is only
read during the Controller’s power on sequence.
Table 4-3 Configuration Switch #1 Descriptions
SW# FUNCTION Details
1 transducer type
refer to
section 1.10.5.5 on page 1-23
0 = off - series 19 and higher
1 = on - series 18 and lower
2 communications configuration (see note below)
3 communications configuration (see note below)
4 communications configuration (see note below)
5 spare
6 always use factory set Reference Zero (0=off, 1=on) When on,
Reference Zero may not be
user set.
7 parameter lock (0=off, 1=on) When on,
parameters may not be altered
from the front panel. However,
all parameters may be changed
through communications.
8 spare
NOTE: The supported communication is RS-232C.