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T1/T1S User’s Manual
1. System Configuration
Password protection:
By registering your passwords, four levels of protection is available according to the
security levels required for your application.
Level 4: Reading/writing program and writing data are prohibited
Level 3: Reading/writing program are prohibited
Level 2: Writing program is prohibited
Level 1: No protection (changing passwords is available only in this level)
Two points of solid-state output:
Each model of the T1/T1S has two points of solid-state output (transistors for DC input
type and triacs for AC input type). These solid-state outputs are suitable for frequent
switching application.
Removable terminal blocks:
The T1-28, T1-40 and T1-40S are equipped with removable terminal blocks. This
supports the easy maintenance work.
DIN rail mounting:
The T1/T1S is equipped with brackets for mounting on a standard 35 mm DIN rail. The
T1/T1S can be mounted on a DIN rail as well as screw mounting.
On-line program changes: (T1S only)
When the T1S’s memory mode is set to 4 k steps mode, on-line (in RUN mode)
program changes are available. Furthermore, program writing into the built-in
EEPROM is also available in RUN mode. These functions are useful in program
debugging stage.
Real-time clock/calendar function: (T1S only)
The T1S has the real-time-clock/calendar function (year, month, day, day of the week,
hours, minutes, seconds) that can be used for performing scheduled operations, data
gathering with time stamps, etc. The real-time-clock/calendar data is backed up by
built-in capacitor for power off. The back-up period is more than 7 days at 25
°
C.
RS-485 multi-purpose communication port: (T1S only)
The T1S has an RS-485 multi-purpose communication port. Using this port, one of the
following communication modes can be selected.
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Computer link mode:
T-series computer link protocol can be used in this mode.
Up to 32 T1Ss can be connected to a master computer. By using this mode,
MMI/SCADA system can be easily configured.
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Data link mode:
Two PLCs (any combination of T1S, T2E or T2N) can be directly
linked together. This direct link is inexpensive, easily configured and requires no
special programming.
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Free ASCII mode:
User defined ASCII messages can be transmitted and
received through this port. A terminal, printer, bar-code reader, or other serial
ASCII device can be directly connected.
CTi Automation - Phone: 800.894.0412 - Fax: 208.368.0415 - Web: www.ctiautomation.net - Email: info@ctiautomation.net