Tcp/Ip Interface; Ak Protocol Specification; Ak Command Telegram; Ak Response Telegram - TESTO CU-2 User Manual

7 AK Host Operation
7.2.2.

TCP/IP Interface

There are two RJ45 connector at the back of the unit for the TCP/IP communication. Both ports
may be used to connect one or two host computers to the testo CU-2.
There are two parameters necessary for the AK communication:
•
IP addresses of the computer. These can be changed when logged in as administrator
on the embedded computer.
Default value for LAN2: 192.168.1.129, LAN1 is set to DHCP by default.
These addresses may have to be changed to connect the testo CU-2 to a network.
The embedded computer can be identified in a network by its network name.
Default name of testo CU-2 is 'MATTER-[Serial number]', e.g.: 'MATTER-101999'
•
The AK port addresses can be configured in the testo NanoMet software. Each port must
be a number between 0 and 65535. Default values are 49152 (Host A) and 49153 (Host
B).
Both ports are used at the two IP addresses, respectively LAN ports.
Numbers from 0 up to 49151 should not be used, because they are officially registered
and reserved.
7.3.

AK Protocol Specification

7.3.1.

AK Command Telegram

protocol:
1. Byte STX
2. Byte DON'T CARE
3. Byte FUNCT.CODE1
4. Byte FUNCT.CODE2
5. Byte FUNCT.CODE3
6. Byte FUNCT.CODE4
7. Byte BLANK
8. Byte 'K'
9. Byte NUMBER
DATA
n. Byte ETX
7.3.2.

AK Response Telegram

protocol:
1. Byte
2. Byte
FUNCT.CODE1
3. Byte
26
HEAD
VARIABLE DATA
(length depending
on functional code)
END
STX
DON'T CARE
hex: description
02 start byte
any byte, configurable in testo
(30) NanoMet software
default = 30 h = '0'
function code, 4 bytes
20 blank (space, 20 h)
K for channel / device with
4B
following number
device number,
always = 0, 1 byte
data depending on functional
code
03 end byte
hex: description
02
start byte
any byte, configurable in testo
HEAD (30)
NanoMet software
default = 30 h = '0'
function code, 4 bytes