S+S Regeltechnik FSFTM-Modbus, Operating Instructions Manual

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HYGRASGARD ® FSFTM - Modbus | Configuration
Rev. 2018 - V16 intro
BUS ADDRESS
Bus address
(binary coded, value selectable from 1 to 247)
MODBUS
DIP switch [A]
DIP 1 DIP 2 DIP 3 DIP 4 DIP 5 DIP 6 DIP 7 DIP 8
1 2 3 4 5 6 7 8
ON DIP A
128 64 32 16 8 4 2 1
O N O N OFF OFF OFF OFF OFF O N
Example shows 128 + 64 + 1 = 193 as Modbus address.
The device address in the range of 1 to 247 is set at DIP switch [A].
For switch positions 1 to 8 see the table on the back!
Address 0 is reserved for broadcast messages. Addresses greater than 247 must not be assigned
and are ignored by the device. The DIP switches are binary-coded with the following values:
DIP 1 =
128 ............ DIP 1 = ON
DIP 2 =
64
............ DIP 2 =
ON
DIP 3 = 32 ............ DIP 3 = OFF
DIP 4 = 16 ............ DIP 4 = OFF
DIP 5 =
8 ............ DIP 5 = OFF
DIP 6 = 4 ............ DIP 6 = OFF
DIP 7 = 2 ............ DIP 7 = OFF
DIP 8 = 1 ............ DIP 8 = ON The switch positions shown here result in the Modbus address 128 + 64 + 1 = 193
BUS PARAMETERS
Baud rate
(selectable)
DIP
1
DIP
2
MODBUS
DIP switch [B]
9600 baud O N
OFF
1 2 3 4 5 6
ON DIP B
19200 baud O N O N
38400 baud OFF O N
Reserved
OFF OFF
Parity
(selectable)
DIP
3
Parity check
(on / off)
DIP
4
8N1-Modus
(on / off)
DIP
5
Bus termination
(on / off)
DIP
6
EVEN
(numbered)
O N
Active
(1 stop bit)
O N Active O N Active O N
ODD
(numbered)
OFF
Inactive (no parity)
(2 stop bits)
OFF Inactive (default) OFF Inactive OFF
The baud rate (speed of transmission) is set at DIP switches 1 and 2 of DIP switch block [B].
Selectable are 9600 baud, 19200 baud, or 38400 baud – see table!
Parity is set at DIP switch 3 of DIP switch block [B].
Selectable are EVEN or ODD – see table!
Parity check is activated via DIP switch 4 of DIP switch block [B].
Selectable are active (1 stop bit) , or inactive (2 stop bits) , i.e. no parity check – see table!
The 8N1 mode is activated via DIP switch 5 of DIP switch block [B].
The functionality of DIP switch 3 (parity) and DIP switch 4 (parity check) of DIP switch block [B] is therefore deactivated.
Selectable are 8N1 active or inactive (default) – see table !.
Bus termination is activated via DIP switch 6 of DIP switch block [B].
Selectable are active (bus termination resistance of 120 Ohm), or inactive (no bus termination) – see table!
When bus parameters and bus address are changed at devices with
display
,
the respective settings are shown on the display for approx. 30 seconds.
COMMUNICATION INDICATOR
Communication is indicated via two LEDs. Error-free received telegrams are signalized by the green LED lighting up, regardless of
the device address. Faulty telegrams or triggered Modbus exception telegrams are depicted by the red LED lighting up.
DIAGNOSTICS
An error diagnostic function is integrated
POTENTIOMETER
The potentiometer setting is recorded in the range from 0-100% and is emitted via the register 3x0005 (setpoint potentiometer).