T1s features, Large program memory, On-line program changes – Toshiba T1S User Manual
Page 8: Real-time clock/calendar, Built-in rs-485 communication port, Computer link mode
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T1S Features
Large Program Memory
Ttred of loading a micro PLC with different programs or different recipes for each different part or
different process? The T1S has 8 k steps of program memory & 4 k words of data memory.
Several programs and recipes can be easily loaded into a TIS. Then, simply select the program or
recipe to be executed.
On-line Program Changes
In the 4 k memory mode, It is possible to make program changes and write to the internai EEPROM
while the T1S is executing the user application program. This feature is very important in process
control applications where it is not always possible to stop the process just to add an additional
interlock or permissive.
Real-time Clock/Calendar
The T1S has a real-time clock/calendar for year, month, day, day of the week, hour, minute, and
second. It can be used for performing scheduled operations {each Sunday at 6 pm), time and date
stamping event occurrences, etc. The real-time clock/calendar is backed up by built-in capacitor.
The back-up period is more than 7 days (25’C).
Built-in RS-485 Communication Port
TheTIS has a built-in RS-485 multi-purpose communication port. This port can operate in one of
three (3) different modes.
Computer link mode
T-series computer link protocol can be used in this mode, A maximum of 32 TiSs can be connected
to a master computer, operator interface station, or other higher level controller. In this mode, the
computer can read and write to all the registers in theTfS. The T-series PLC programming software
(T-PDS) can also be used In this configuration to program each of the Ti S’s.
M^ter Computer
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RS-465 (1 km max,}
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Max, 32T1SS