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GWY-01-DNT-01 MANUAL – REV. 02 CHAPTER 4:

COMMAND MAPPING

PAGE 37 OF 67

4.5.2 CBx - Controller Response Example

Below is a controller’s response after successfully completing the Read Data

command (as issued in the previous example).

WORD PACKET ELEMENT MSB LSB

Overall Length of Response (in “words”)

0x00 0x08

0xAA in MSB

Command Echo in LSB: (0x05 - Read Data)

0xAA 0x05

Instance Counter in MSB

Node ID Echo in LSB

<IC> 0x01

Month and Day Timestamp (March 19

)

0x03 0x13

Hour and Minute Timestamp (10:11: AM)

0x0A 0x0B

Seconds Timestamp in MSB: (36 seconds)

Additional Data Length in LSB (4 bytes)

0x24 0x04

Retrieved Data (bytes 1 and 2)

0x01 0x02

Retrieved Data (bytes 3 and 4)

0x03 0x04

4.5.3 CBx - Gateway Command Example

In this example, the host issues Command 0x13 (Get Node Status List), which

retrieves from the Gateway, a list that indicates the operating status of the 16 Nodes.

WORD DESCRIPTION MSB LSB

01 Overall Length of Command (in “words”)

0x00 0x06

02 0xAA in MSB

Command ID in LSB: (0x13 - Get Node Status List)

0xAA 0x13

03 0x00 in MSB

Node ID in LSB: (0x20 = Gateway Node 32)

0x00 0x20

04 Not Used: 0x00, 0x00 (default)

0x00 0x00

05 Not Used: 0x00, 0x00 (default)

0x00 0x00

06 Not Used: 0x00, 0x00 (default)

0x00 0x00

Note that even though the last three words (6 bytes) of this command are not used,

these parameters still require zero’s (0x00, 0x00) and are to be included when

calculating Overall Length.

1 2 ... 32 33 34 35 36 37 38 39 40 41 42 ... 66 67

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