Future Design MCTB 4.3, User Manual

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MCTB
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A.1.2.2 Automatic Program Registers
The automatic program parameters are a separate group of registers that are used to load programs into the
MCTB. The manner in which the program steps are configured and sent to the MCTB is specific and must be
followed exactly.
Each program step consists of 20 data registers. The program must be written one step at a time, using a
multiple write command (0x10) to write the data for all 18 registers at once. This allows programs to be stored
as two-dimensional arrays, of which code can be written to simply index through the array step-by-step and
transmit the program file to the MCTB.
IMPORTANT: When downloading programs to the MCTB, the program will be saved with the name contained
in the program header. If no name is specified (register values of 0), the default name of
“PC_Download” will be used. The program can then be accessed and/or edited from the front
of the MCTB.
If program already exists within the MCTB memory with the same name, it will be overwritten.
However, if the program with the same name is currently running, the program downloaded will
not overwrite the existing program. It will instead be saved as “PC_Download”. After the
current program is stopped, the operator can then choose to save the program under its
intended name, or rename it to something else.
The first 20 registers (the program header) of the program contain specific settings related to the
program. These include hold back limits, ramp units, dwell units, the program name and the length of
the program (number of steps).
Modbus
Address
Register Number Parameter Description
Data *D
Range
*E
*F
Type Low High Unit
401101 1100 (0x044C) Hold Back Limit Loop 1 W
*E1 *E1
PV
401102 1101 (0x044D)
401103 1102 (0x044E) Ramp Units W
*E2 *E2
-
401104 1103 (0x044F) Dwell Units W
*E3 *E3
-
401105 1104 (0x0450) Hold Back Limit Loop 2 W
*E1 *E1
PV
401106 1105 (0x0451)
401107 1106 (0x0452) Total Number of Steps W 1 64 -
401108 1107 (0x0453) Program Name (Chars 1 & 2) W
*E4 *E4
-
401109 1108 (0x0454) Program Name (Chars 3 & 4) W
*E4 *E4
-
401110 1109 (0x0455) Program Name (Chars 5 & 6) W
*E4 *E4
-
401111 1110 (0x0456) Program Name (Chars 7 & 8) W
*E4 *E4
-
401112 1111 (0x0457) Program Name (Chars 9 & 10) W
*E4 *E4
-
401113 1112 (0x0458) Program Name (Chars 11 & 12) W
*E4 *E4
-
401114 1113 (0x0459) Program Name (Chars 13 & 14) W
*E4 *E4
-
401115 1114 (0x045A) Program Name (Chars 15 & 16) W
*E4 *E4
-
401116 1115 (0x045B)
401117 1116 (0x045C) Hold Back Limit Loop 3 W
*E1 *E1
PV
401118 1117 (0x045D)
401119 1118 (0x045E)
401120 1119 (0x045F)