6F3B0250
Basic Hardware and Function 33
1. System Configurati on

1.6 Computer link system

The inter face of t he T1/T1S’s pr ogrammer port is RS-232C. Norm ally this por t is used
to connect the pr ogrammer . However, this por t can also be used for the com put er link
function.
The comput er link is a data communicat ion function between computer or oper at or
interface unit and the T1/T1S. T he dat a in the T1/T 1S can be r ead and written by
creating sim ple com m unication program on the computer. The computer link protocol
of t he T1/T1S is published in “ T1/T1S User ’s Manual - Communicat ion Funct ion -”.
Item Specifications
Interface Conform s to RS-232C
Transm ission s
y
stem Half-duplex
S
y
nchronization Start- stop s
y
stem (as
y
nchronous)
Transm ission speed 9600 bps (f ixed)
Transm ission distance 15 m max.
Framin
g
Start bit :
Data bits:
Parity:
Stop bit:
1 bit
8 bits (fixed)
Odd or none
1 bit (fixed)
Protocol T-ser ies computer link (ASCII)
Pro
g
rammer (binar
y
)
Transm ission dela
y
option 0 to 300 ms
By using the multi-drop adapter (CU111) , multiple T1/ T1Ss can be connected on an
RS-485 line. The T-series PLC programming software (T-PDS) can also be used in this
configuration.
T1 T1
C
U
Operator Interface Master Computer
RS-232C RS-485 (1 k m max.) Max. 32 T1s
T1
C
UT1
C
U
NOTE In case of the T1, there are f unct ional lim it ations as follows.
·Multi-drop conf iguration is available with version 1.10 or lat e r .
·Progr ammer connection in t he m u lt i-drop configuration, none par ity and
transmission delay options are available with version 1.20 or later .
CTi Automation - Phone: 800.894.0412 - Fax: 208.368.0415 - Web: www.ctiautomation.net - Email: info@ctiautomation.net