User's Manual

8.2.6 MAC_NumRetrys: Conﬁgure the number of retries

Settings

index

Designation

Permissible

values

Default value Permissions

Number

Bytes

MAC_NumRetrys

0 - 255

0 read/write

This UserSetting determines the maximum number of wireless transmission retries. If this

parameter is set to a value other than zero, the receiver module will automatically be prompt-

ed to send a wireless acknowledgement ("ACK"). Please note that sending acknowledge-

ments additionally increases the trafﬁc and will have inﬂuence on the duty-cycle, which can

be crucial for CE compliance.

This parameter shall only be enabled (i.e. set to another value than 0) if the

parameter address mode selects a value of 1, 2 or 3 and the customer has

conﬁgured unique addresses for the entire network. A use of broadcast mes-

sages (destination network ID and/or destination address) is not allowed when

MAC_NumRetrys

is set to any value not equal to 0.

8.2.6.1 Example 1

Set the transmission retry number to 1 using the

CMD_SET_REQ

Start signal Command Length Settings index Parameter CS

0x02 0x09 0x02 0x06 0x01 0x0E

Response

CMD_SET_CNF

: Successfully modiﬁed the setting.

Start signal Command | 0x40 Length Status CS

0x02 0x49 0x01 0x00 0x4A

8.2.6.2 Example 2

Request the number of retries using

CMD_GET_REQ

Start signal Command Length Settings index CS

0x02 0x0A 0x01 0x06 0x0F

Response

CMD_GET_CNF

: Successfully read out thenumber of retries as 3.

Start signal Command | 0x40 Length Status Parameter CS

0x02 0x4A 0x02 0x00 0x013 0x49