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18 T1/T1S User’s Manual
1. System Configurati on
Password protection:
By registering your passwords, four levels of pr otection is available according to t he
security levels required for your application.
Level 4: Reading/writing progr am and writ ing data are prohibited
Level 3: Reading/writing pr ogram are pr ohibit ed
Level 2: Wr it ing progr a m is pr ohibit ed
Level 1: No protection (c hanging passwords is available only in this level)
Two poi nt s 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-stat e out puts are suitable f or frequent
switching application.
Removable terminal blocks:
The T1-28, T1-40 and T1-40S are eq uipped with removable ter m inal blocks. This
supports the easy maint enance work .
DIN rail mount ing:
The T1/T1S is equipped with brackets for mounting on a standard 35 mm DIN rail. The
T1/T1S can be mounted on a DI N r ail as well as screw mounting.
On-li ne program changes: (T1S only)
When t he T1S’s memory mode is set to 4 k steps m ode, on- line ( in RUN m ode)
progr am changes are available. Furt her m ore, prog r a m writing into the built - in
EEPROM is also available in RUN mode. These functions are useful in progr am
debugging stage.
Real-ti me clock/calendar funct i on: ( T1S only)
The T1S has the r eal- t ime-clock/ calendar f unct ion ( year, m ont h, day, day of t he week,
hours, minut es, seconds) that can be used for perform ing scheduled operations, dat a
gather ing with time stamps, et c. The real-time-clock/calendar data is back ed up by
built-in capacitor for power off. T he back-up period is mor e t han 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 comm unicat ion m odes can be select ed.
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·Computer link mode: T -series computer link protocol can be used in this mode.
Up to 32 T1Ss can be connect ed t o a master comput er . By using t his m ode,
MMI/SCADA system can be easily conf igured.
·
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·Data link mode: Two PLCs (any combination of T1S, T2E or T2N) can be directly
linked to gether. This direct link is inexpensive, easily configur ed and r equires no
special progr am m ing.
·
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·Free ASCII mode: User defined ASCII m essages can be transmitted and
received through this port. A t er m inal, pr inter, bar- code r eader , or other ser ial
ASCII device can be directly connected.
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