The Object Dictionary

Inhibit Time

In the case of PDO transmission (Transmit PDO), the Inhibit Time can be entered in

(Sub-index 3)

this 16-bit field. After data has been changed, the PDO sender checks that an Inibit

 

Time has expired since the last transmission. A new PDO transmission can only

 

take place if the Inhibit Time has expired. The Inhibit Time is useful for asynchronous

 

transmission (transmission mode 255), to avoid overloads on the CAN bus. The

 

Inhibit Time is a multiple of 100 μs of the value written in sub-index 3 of objects

 

1800H and 1805H.

 

 

 

 

The following table gives some examples of values.

 

 

 

 

 

 

 

Value

 

Inhibit Time in ms

 

 

 

 

 

 

 

 

Dec.

Hex.

 

 

 

 

 

 

 

 

 

 

0000

0000

0

 

 

 

 

 

 

 

 

 

100

0064

10

 

 

 

 

 

 

 

 

 

1000

03E8

100

 

 

 

 

 

 

 

 

 

5000

1388

500

 

 

 

 

 

 

 

 

 

10000

2710

1000

 

 

 

 

 

 

 

 

 

65535

FFFF

6553.5

 

 

Event Timer

 

 

 

 

 

 

 

 

 

 

The Event Timer only works in asynchronous transmission mode (transmission

(Sub-index 5)

mode 255). If data changes before the Event Timer expires, a TPDO is sent. If a

 

value higher than 0 is written in this 16-bit field, the TPDO is sent after the Event

 

Timer expires. The value written in sub-index 5 of objects 1800H and 1805H

 

corresponds to the Event Timer in milliseconds. The data transfer takes place even

 

if there is no change to data.

 

The following table gives some examples of values.

 

 

 

 

 

 

Value

 

Event Timer in ms

 

 

 

 

 

 

 

 

 

Dec.

Hex.

 

 

 

 

 

 

 

 

 

 

0000

0000

0

 

 

 

 

 

 

 

 

 

100

0064

100

 

 

 

 

 

 

 

 

 

1000

03E8

1000

 

 

 

 

 

 

 

 

 

5000

1388

5000

 

 

 

 

 

 

 

 

 

10000

2710

10000

 

 

 

 

 

 

 

 

 

65535

FFFF

65535

 

 

 

 

 

 

 

 

 

 

 

 

 

 

166

1606218 02 08/2006

Page 166
Image 166
Schneider Electric IP67 manual Inhibit Time, If there is no change to data