Maple Systems MAPware-7000 - Manual (Page 88)

88 MAPware-7000 Programming Manual
1010-1040, Rev. 02

For Tag B (HMI/PLC), click the pull-down box and select the N007050** (Boiler Temp)
tag.

For Number of Words, enter 1.

For Enable Control, select the No option.

Click the Add button. You should now see ‘Copy HMI/PLC Block Boiler Temp of 1 to HMI
Block Copy of N7:50’ in the Global Tasks window. This task continuously executes in the
background during HMC operation.
Finally, we need to create a ladder logic program that will monitor the value in the PLC register
and if that value exceeds or equals 100, then turn on the bit lamp.
Create a Simple Logic Block Program
Logic blocks are another formidable feature in the HMC7000 Series. As with a PLC, logic blocks
interpret information from various inputs (both physical as well as internal), and then activate or
control outputs (using optional I/O expansion modules or controlling an external PLC) based
upon that information. You can create extensive ladder logic programs and/or multiple
programs that run continuously in the background or called only when needed, (for more
information on Logic Block programming, see Chapter 11 - Ladder Logic Blocks and Chapter 1 of
the HMC7000 Series Ladder Logic Instructions Manual).

Click on the Logic Blocks folder in the Project Information Window and expand it so that
you can click on the Block 1 subfolder under the Main folder:

A ladder rung with an End instruction is already located in the Block 1 program. We
want to add two rungs to this program. To do this, click anywhere on the existing rung,