GE VMIVME-7807RC-412010 Gas turbine signal module

Block transfer instructions with the PLC-3 processor use one binary file in a data table section for module location and other related data. This is the block transfer control file. The block transfer data file stores data that you want transferred to the module (when programming a block transfer write) or from the module (when programming a block transfer read). The address of the block transfer data files are stored in the block transfer control file. The industrial terminal prompts you to create a control file when a block transfer instruction is being programmed. The same block transfer control file is used for both the read and write instructions for your module. A different block transfer control file is required for every module. A sample program is shown in Figure 3.2 below.

PLC3 Family Sample Program Structure

The VHSC module is located in rack 1, module group 0, slot 0. The control file is a 10 word file, shared by the BTR and BTW, starting at B12:0. The data obtained by the processor from the VHSC is placed in memory starting at location N13:101, and with the default length of 0 is 18 words long. The MSD of counter 0 is stored in N13:103 and the LSD of counter 0 is stored in N13:104.The VHSC module is located in rack 1, module group 0, slot 0. The control file is a 10 word file, shared by the BTR and BTW, starting at B12:0. The data sent by the processor to the VHSC is placed in memory starting at location N13:1, and with the default length of 0 is 64 words long. If the default mode of VHSC operation is desired (rollover at 999,999 outputs disabled), this rung can be optional. The module configured bit can also be used as a precondition to increas

e BTR throughput.

PLC5 Program Example

Block transfer instructions with the PLC-5 processor use one binary file in a data table section for module location and other related data. This is the block transfer control file. The block transfer data file stores data that you want transferred to the module (when programming a block transfer write) or from the module (when programming a block transfer read). The address of the block transfer data files are stored in the block transfer control file. The industrial terminal prompts you to create a control file when a block transfer instruction is being programmed. A different block transfer control file is used for the read and write instructions for your module.

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