aiki202
Member
Thanks in advance for any feedback!
I have two questions.
1) I am adding functionality to an AB PV1200 (DOS w/ function keys). I have a user manual and can accomplish what is required but I do not understand how the block transfer data relates to the discrete data table in the PV. The original set up uses 1.5 files or 3 bytes of BT data, which shows up as used in the discrete data table in the PV. How is the 3 bytes of discrete data being utilized in the BT? The block transfers are 16 bit(words), 32 per file being used at this time.
2) There is an 12 bit analog output card in a remote I/O rack being read from a PLC-5/40. The data from the analog card is being read by block transfer. But the I/O data table in RSLogix5 shows the addesses of the remote rack. I may be incorrect, but in SLC500 remote I/O from an adapter shows up as 32 words even if they are not used. Is this the same with PLC-5? If you addess a remote rack it shows up in the data table even if it is not used by discrete addessing?
I have two questions.
1) I am adding functionality to an AB PV1200 (DOS w/ function keys). I have a user manual and can accomplish what is required but I do not understand how the block transfer data relates to the discrete data table in the PV. The original set up uses 1.5 files or 3 bytes of BT data, which shows up as used in the discrete data table in the PV. How is the 3 bytes of discrete data being utilized in the BT? The block transfers are 16 bit(words), 32 per file being used at this time.
2) There is an 12 bit analog output card in a remote I/O rack being read from a PLC-5/40. The data from the analog card is being read by block transfer. But the I/O data table in RSLogix5 shows the addesses of the remote rack. I may be incorrect, but in SLC500 remote I/O from an adapter shows up as 32 words even if they are not used. Is this the same with PLC-5? If you addess a remote rack it shows up in the data table even if it is not used by discrete addessing?