Det-Tronics Mac - w/Supercard - Manual (Page 31)

The single port version assigns the modem port for communicating with
the gateway.
The four port version leaves the modem port open and uses only the four
serial ports on the serial expansion board.
If Hiway Polling is switched on, the watchdog timer will continuously
monitor serial communications.
■ If the OIS requests data from the gateway, it must receive that
data within the time specified in the watchdog timer dialog box
(180 or 3 second default) or a watchdog timer timeout occurs.
This indicates that the link to the gateway has been lost.
■ Any watchdog timer timeout errors are displayed in the event
window, logged to disk and sent to the printer.
Select the “Set Address” button to modify the Modbus station address for
the OIS.
The current address setting is displayed in the data entry field. This must
be a unique address. Each device must have a different address from 1
to 247.
Driver Settings ( Á3)
F
OUR
P
ORT
V
ERSION
W
ATCHDOG
T
IMER
OIS M
ODBUS
A
DDRESS
2.18
95-8434
A1787
A1790
A1789