Programming with SPM
A typical help screen is shown in Figure 2-2.
Figure 2-2. SPM Help Screen
Connecting the PC
There are three ways to connect the PC to the control unit. Choose the method
that is most useful for your installation:
direct local connection
Iocal modem connection
remote modem connection
These types of connections are described later in this section.
System Requirements
To use SPM to program your system, you need the SPM diskette and an AT&T
PC with version 3.3 (or a later version) of MS-DOS®. Your PC should include
the following:
at least 640 kbytes of RAM
Connecting the PC 2 - 7
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