Remberg ISO-plus-CAN, Руководство пользователя

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User manual - 17
Press Display Do
1 1300 Write 1 to enable Latch on. Write 0
to end procedure
Place the sensor on minimum
operating value (corresponding
to
Lo.L.i
)
2 1301 Write 1 to fi x value on minimum
Place sensor on maximum
operating value (corresponding
to
uP.L.i.
)
3 1302 Write 1 to fi x value on maximum
To exit standard procedure write 0
on 1300 or wait 120 seconds.
With
“virtual zero”
put the sensor
on zero point.
4 1303 Write 1 to fi x zero virtual value.
Write 2 to reset zero virtual value.
To exit procedure write 0 on word
1300.
7.13 Expansion function
Selecting 1 on parameter 121
E.Mod.
(
“Expansion Module”
word 2121)
it
works
as a expansion module. Controller functions (temperature control, alarms, softstart
etc..) are disabled and outputs management must be done by an external master
(Es. PLC, HMI panel...).
It is possible to confi gure output status at starting and in case of error, programming
parameters 122...131 (see par. 9). Into this mode, refer to modbus words 1500..1508
(see par. 8).
8 Serial communication
The module xx-
T128 is equipped with RS485 and can receive/broadcast data via serial
communication using MODBUS RTU protocol. The device can only be confi gured
as a Slave. This function enables the control of multiple controllers connected to a
supervisory system/SCADA.
If contacts of dip-switch 1 are all open each controller responds to a Master query
only if the query contains the same address as parameter 111
sL.ad.
(
“Slave Address”
word 2111).
The addresses permitted range from 1 to 254 and there must not be controllers with
the same address on the same line.
Address 255 can be used by the Master to communicate with all the connected
equipment (broadcast mode), while with 0 all the devices receive the command, but
no response is expected.