User Manual 1260-35
Module Specific Syntax 3-3
Command
module to the 1260 Controller. The syntax used is:
PDATAOUT
<module address>[.<module address>]
[;<module address>]…..
The responses to the PDATAOUT command is as follows:
1260-35:
Two-wire
<module address>. 1260-3 SB Two-wire Scanner/Multiplexer
Module
<module address>. <channel>[,<channel>] [,<channel>]
<module address>.END
1260-35 Four-wire
<module address>. 1 260-35A Four-wire Scanner/Multiplexer
Module
<module address>. <channel>[,<channel>] [,<channel>]
<module address>.END
The response to the PDATAOUT command consists of a header
on the first line as with the PSETUP response. The next line
details the channels currently closed on the module and is blank
when no channels are closed. Again, the last line is denoted by the
"END" string of characters.
Operation In
Single-Wire Mode
The 1260-35 is delivered with all jumpers installed (refer to Table
2-1). In this configuration, the module is a 1 x 96 two-wire
multiplexer (refer to Figure 3-1).
Channel 97 is a single pole, double throw (SPDT) relay with its
common channel connected to J202, pin B2. The normally closed
(NC) contact is connected to the "LO" side of the two-wire
common bus, and the normally open (NO) contact is connected to
the "HI" side of the common bus.
The common output of channel 96 is the single channel of the 192
x 1 multiplexer, and the 96 HI and 96 LO connections make up the
192 channels. By closing the appropriate channel (0-95) and
opening or closing channel 96. a 192 x 1 multiplexer is achieved.
Example:
CLOSE
3.46
CLOSE
3.96
This would correct J202 pin B2 to J202 pin A4
Table 3-1, 1260-35 Channel Closure
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