Programming - Serial Port
100
025-9567E
The
DTR
(data-terminal-ready) and
RTS
(request-to-send) signals are passively pulled to +12
volts via 330
Ω
resistors. These connections may be used to provide “space” levels for tying
to other RS-232C signals.
The RS-232C levels sent out the
TX DATA
pin are approximately -3.0 volts for a “mark” and
+10 volts for a “space” or “break” level. The acceptable RS-232C levels received at the
RX
DATA
,
CTS
, and
RMT CTL
pins are +0.7 to -15 volts for a “mark” level and +1.5 to +15 volts
for a “space” level.
Several of the remote control parameters are programmable. The programmable parameters
are shown below. When in instant call mode these parameters are fixed at: baud = 4800, 1
NUL
for new lines, no
BEL
characters, ignore
CTS
. Details of these parameters are available
in the subsection “PROGRAMMING SECTION 6 - REMOTE CONTROL SETUP” on page
96.
Baud rate: 4800, 600, or 150
Number of ASCII
NUL
characters for each new line: 0 to 99
Use of the ASCII
BEL
character: enable or disable use
Use of the
CTS
signal: use
CTS
as a busy or ignore
CTS
Polarity of the
CTS
signal: busy on “space” or “mark” levels
Call logging: disable or enable logging output.
The pin definition of the DE9 computer port connector socket is listed in Table 27.
Table 27. Model 25 Computer Port Pinout
Pin Label/Function
1
DTR (data-terminal-ready) provides “space” (pull-up to +12v via 330
)
2
N/C (no connection)
3
TX DATA (transmit data)
4
RX DATA (receive data) “break” resets encoder
5 SIGNAL-GROUND
6
N/C (no connection)
7
RTS (request-to-send) provides “space” (pull-up to +12v via 330
)
8
CTS (clear-to-send) also known as “printer busy”
9 RMT-CTL
(remote-control) “space” = rmt ctl.
Summary of Contents for Model 25
Page 1: ...Model 25 Programmable Encoder Product Manual 025 9567E...
Page 2: ......
Page 16: ...Specifications 8 025 9567E...
Page 36: ...Operation 28 025 9567E RELAY TIMING DIAGRAM...
Page 62: ...Auxiliary Panel Installation 54 025 9567E...
Page 72: ...Troubleshooting 64 025 9567E...