Connection With Control Station - Samson TROVIS 5724-8 Series Mounting And Operating Instructions

No protocol supported
− Setting -2: automatic
The SSP and Modbus protocols are au-
tomatically detected: the interface pa-
rameters are fixed internally to Baud rate
9600 bit/s, 8 data bits, no parity, 1 stop
bit. The controller can exchange data
with TROVIS-VIEW or the control station
without switching over. Station number
and timeout are adjustable.
− Setting -3: Modbus RTU
Communication is based on the Modbus
RTU protocol. All interface parameters
listed in Table 3 are adjustable.
Station number
The station number 'A d' is used to identify
the controller for the Modbus RTU protocol.
Transmission rate
The transmission rate is adjusted with the 'b
d' parameter. It is the transmission rate be-
tween the controller and control station/com-
puter. The transmission rate adjusted at the
controller must be the same as that in the
control station. Otherwise, no communica-
tion is established.
Stop bit and parity
The number of stop bits and the parity are
set in the 'S t' parameter. The parity
(none = 0, even = 1 and odd = 2) is used to
detect data transmission errors. The parity
bit is added to the end of the string of data
bits and the total value is made up from the
data and parity bit.
EB 5724-8 EN
Timeout
The external manual level of the communica-
tion is monitored by the bus failure monitor-
ing. After a bus failure is detected, automatic
operation is reestablished. The time for the
bus failure monitoring is adjustable. Set the
value to 0 to deactivate bus failure monitor-
ing.
5.6.2 Connection with control
station
Î Connect bus connecting cable (1380-
2689). See Fig. 6.
Î Define Modbus parameters:
− Over on-site operation or
− Using the TROVIS-VIEW software
Defining Modbus parameters over on-site
operation
Press until 'C P' appears on the display.
Select the main menus [U n], [P r], [A d], [b
d], [S t] and [t I] one after the other and
change settings. To do this, proceed as fol-
lows:
Press to select a menu or configuration
item.
Press to confirm the setting.
Press to exit the setting without saving
it.
See Table 3 for meaning of menus and con-
figuration items.
Mounting and start-up
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