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I popped off the internal plate covering the chipset and the processor is labeled with: WAVIS128BP-21.1, Honeywell 2013, Rev.

If I did, I believe I can snoop (via the aforementioned box) on the communications and determine the correct data format for transmitting to the panel (debug my packet format).

I have no access to any other s/w or h/w that can communicate with the panel correctly.Therefore, I have no idea if the panel is simply not receiving my commands or if I've formatted them incorrectly. The tech note says that incorrect input will be completely ignored.The checksum logic matches on received commands. The C program matches the Packet Format outlined earlier in the note: (CR-LF)NNMSD.00CC(CR-LF) where NN is packet length, M is Message Type, S is subtype, D is Data and CC is the 2's complement 256 modulo checksum.

#Exacqvision serial communication protocol generator

Appendix A from the Tech Note contains a C source command string generator I'm using to send commands (and checksum received commands).

I suspect (but cannot know) that programming for the BPT version is the same. However, I am able to interpret commands emitted by the panel based upon information in this tech note.

I wrote s/w in C cribbed from a Tech Note titled: "RS232 Protocol: 128/250BPE and 128/250 FBP rev 4+".

I didn't expect much from this step, as receiving correctly means being in the correct configuration for transmitting.

I have null modem and crossover interconnects, which I've tried.

I was able to send and receive through all port combinations. In order to diagnose the box output, I inter-connected Ports 1 through 4 back to the box's other Ports and tested I/O between all six combinations of four ports. Although I suspected the box might be the problem, I am able to receive input.

I have an RS-232 to IP box (four RS-232 terminals) I am using for communications.

The J9 and the TB4 cables are not connected to RS-232 simultaneously. I also have a VT-SERCBL on J9 (oriented correctly) both of which I have successfully listened to panel events.

I have built my own cable for attaching into block TB4.

This had no effect, so I've left the resistor off, for now.

My current alarm monitoring company suggested I place a resistor across zone 9 (I guess so the voltage doesn't float?).

#Exacqvision serial communication protocol manual

This was done because I've seen somewhere in the installation manual that zone 9 should not be used when using RS-232 communications. The original installer placed a zone sensor on terminal 9.I have programmer access to the panel and have configured the panel for RS-232 output according the instructions list below to remove Printer and add in RS-232 communications.So, I have the correct baud rate and can see panel output. I do receive zone status and other panel status notifications. However, I am unable to send commands to the panel over the RS-232 data line. The BPT comes with an RS-232 module already installed on the unit. I purchased a Vista-128BPT panel a few years ago and have finally got around to integrating it into my own home automation system. Testing Amazon's Best Selling PoE IP Cameras.

The Maverick 88 - Reliable, cheap shotgun.There are lots of useful posts and insights on the posts:

#Exacqvision serial communication protocol mods

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