[LONG]
V-NBITEM=Number of items (words or bits)
V-STYP=~
V-RET=~
V-FID=File identifier
V-OK=TRUE if successful
V-NAME=Optional request name (description)
V-TRIALS=Number of trials
V-SLAVENO=Slave number
V-ADDRESS=MODBUS address
V-PERIOD=Activation period
V-MODE=Activation mode: PERIODIC / ONCALL / ONCHANGE
V-TIMEOUT=Timeout
V-REQUEST=Request type: RIW / RHW / RIB / RCB / WHW / WCB
[SHORT]
V-NBITEM=~
V-STYP=~
V-RET=~
V-FID=~
V-OK=~
V-NAME=~
V-TRIALS=~
V-SLAVENO=~
V-ADDRESS=~
V-PERIOD=~
V-MODE=~
V-TIMEOUT=~
V-REQUEST=~
