Controller Components
Chapter 2
214
The Industrial Terminal System (Cat. No. 1770-T3) is used to enter, monitor,
edit and troubleshoot the User Program in the memory of the Mini-PLC-2/15
Processor (Figure 2.10). In addition, it can be used for report generation or to
interface peripheral devices to the Processor.
The 1770--T1 or -T2 Industrial Terminals can be used with the Mini-PLC-2/15
Processor, however, they will limit the capabilities of the Processor. When
using the 1770-T1 or -T2 Industrial Terminal, the Mini-PLC-2/15 Processor will
be limited in the following ways:
Up to 256 word Data Table
Up to 104 Timers/ Counters
I/O forcing in one Module Group at a time
Mini-PLC-2 processor instruction set
Figure 2.8
Fivedigit Address
01012
Output=0
Input = 1
Rack Number,
Always 1 for
Mini-PLC-2/15
Module Group Number (0-7)
Terminal Number (00-07, 10-17)
10107-I
In addition to Mini-PLC-2/15 Controller components, the user can supply other
equipment for Controller installation including:
An enclosure, for mounting the Controller and shielding it from noise and
airborne contaminants
Emergency-Stop switches, variable in type and number
Master Control Relay, to enable and disable I/O power by manual control
Disconnects, normally a part of any electrical installation
Isolation transformers or constant voltage transformers, as application needs
dictate
User power supplies, for I/O devices not powered directly from the AC line
Suppression devices, for noise-generating equipment, including inductive
loads in series with hard contacts
Industrial Terminal
UserSupplied Equipment
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