10. Use «Up» or «Down» to select the
Starttd
line.
4 0 0 m b a r 0 8 : 1 5 A M 8 0 ° C
Header
8.1.2.2 SAM 4.0
Menu
IP address : 169.254.100.100
Port : 2000
······························
Communication error : ☑
Start td: 15s
active line
Timeout : 5s ☑
11. Press «Enter».
The setting mode is active.
12. Use «Up» or «Down» to set the
Start td
value to 30 s.
4 0 0 m b a r 0 8 : 1 5 A M 8 0 ° C
Header
8.1.2.2 SAM 4.0
Menu
IP address : 169.254.100.100
Port : 2000
······························
Communication error : ☑
Start td: 30s
active line
Timeout : 5s ☑
13. Press the «Enter» key.
The setting is applied.
Result SIGMA CONTROL 2 communicates with SAM 4.0 via SIGMA NETWORK.
The communication is working smoothly when neither SIGMA CONTROL 2 nor SAM 4.0 report any
communication fault.
8.7.2.1 Reaction in the event of a communication malfunction
After switching on the power supply, monitoring for communication malfunctions is suppressed for
a period of time which can be defined by means of the
Start td
parameter. The setting depends on
the time passing at the bus master between return of voltage and start of communication via the
bus.
For the communication with SAM 4.0, the value of Start td must be set to 30 s.
SIGMA CONTROL 2 can monitor the bus communication at user level. For this purpose, the bus
master reads a value ("toggle bit") that changes with every bus cycle and returns it without change.
SIGMA CONTROL 2 returns a communication malfunction if the value does not change for a time
longer than set (
Timeout
).
Monitoring for communication malfunction can be activated if needed. For this purpose, the
Send/Receive
option must be set for the data exchange. Activate the
Communication error
check box to enable monitoring for communication malfunctions.
8 Initial Start-up
8.7 Setting the machine for master control operation
No.: 901700 10 E
Service Manual Controller
SIGMA CONTROL 2 BLOWER ≥ 2.5.3
105
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