Jetter JX3-BN-CAN, Руководство пользователя

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6.3 Connection Monitoring at the Jetter System Bus
JetWeb
SHIFT_RIGHT(n_ModuleErrorBuffer,
1
);
IF
n_ModuleErrorBuffer WAND
0x01
// Bit 0 = 1
THEN
EXIT; // -> Module has been found
END_IF;
INC(n_Counter); // Next module
END_WHILE;
pn_State :=
3000
+ (n_Counter *
10
);
// Calculate the pointer
n_ModuleNumber := n_C
2
;
// Calculate the module number
End_Task ;
6.3 Connection Monitoring at the Jetter System
Bus
Between the controller and the JX3-BN-CAN module, telegrams are regularly exchanged
via Jetter system bus. This way, the controller can monitor the connection to the
JX3-BN-CAN module. An interrupted connection can be restored by restarting the Jetter
system bus.
Monitoring Interval for I/O Modules
Register(s) 2028
Description By means of register 2028, the time interval between two
monitoring telegrams can be set.
The monitoring interval is configured in steps of 10 ms.
0 : no monitoring
1 : Monitoring time 10 ms
2 : etc.
Access Read / Write
Value Range 0 ... 255
Value After Reset 20 : Monitoring interval 200 ms
Comment Connection monitoring is carried out by the following modules:
• JX2-I/O modules
•
JX3 modules via the JX3-BN-CAN module
•
Third-party modules
• LioN modules
•
LJX7-CSL Compactbox modules
32 Jetter AG