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the L20 controller’s tag database shown below. On the MSG Instruction’s Communication tab above, the path is “2,250”, where the 2 represents the L20 controllers serial port and the 250 tells the ENI module that the 4 words of data contain its IP address.
Figure 7.10 L20 Controller’s Tags
Per Table 7.4, The MSGs in Rungs 2, 3 and 7 are 2 bytes or 1 integer word in length. Their Paths are “2,253”, “2,252” and “2,248” respectively; where 253 represents Baud Rate, 252 represents BOOTP Enable/Disable, and 248 represents the Save function.
The single integer data value for these messages is shown in Table 7.4. “0” is the value for the Save MSG data tag (ENI_SAVE_TO_FLASH_VALUE), which instructs the ENI to save its configuration to
Per Table 7.4, The MSGs in Rungs 5 and 6 assign IP addresses to node numbers in the ENI module’s Message Routing Table. These two MSG Instructions are the same as the MSG Instruction in Rung 3, except the paths are 2,101 and 2,145 and the data tags have different names; this time containing the IP addresses of the SLC 5/05 and
