This file documents the simple utility mbpeekpoke7670 which allows access to holding registers on TS Modbus peripherals when connected to a TS-7670 via serial or USB (when applicable).  The TS-7670 executable binary as well as the source code is supplied for use or modification.

This utility assumes that the reader is familiar with basic Modbus operations.

Usage: mbpeekpoke7670 -switch parameter [OPTIOSN] ...
Download and start a ZPU program.  Optionally persist the code
Default parameter values in [brackets]
  -?                     This help screen
  -b  bit_rate           Bit rate [9600]
                         300, 600, 1200, 2400, 4800, 9600, 19200
                         38400, 57600, 115200, 1000000, 4000000
  -h                     This help screen
  -n  number_of_items    number of items to read [1]
  -r  address            Read: Register @ specified hex address
  -s  slave_address      hexadecimal 00-f8; 00 is broadcast [0xf7]
  -u                     Use USB connection
  -v  data               value to write
  -w  address            Write: Register @ specified address
 The (-w) write option requires a single (-v) variable
 The (-r) read option can read a number of items with the (-n) switch