6. System integration
6.1. Communication protocols
6.1.1. NTP
When enabled, the NTP (Network Time Protocol) service can use external time sources to synchronize
the device's system time. The NTP client service uses an Ethernet connection to connect to the NTP
time server. NTP can be enabled by setting the primary time server and the secondary time server
parameters to the address of the system's NTP time source(s).
Table. 6.1.1. - 116. Server settings.
Name
Range
Description
Primary time server
address
0.0.0.0...255.255.255.255 De nes the address of the primary NTP server. Setting this parameter at
"0.0.0.0" means that the server is not in use.
Secondary time
server address
0.0.0.0...255.255.255.255 De nes the address of the secondary (or backup) NTP server. Setting this
parameter at "0.0.0.0" means that the server is not in use.
Table. 6.1.1. - 117. Client settings.
Name
Range
Description
IP address
0.0.0.0...255.255.255.255
De nes the address of the NTP client.
NOTE: This address must be different than the relay's IP address.
Netmask
0.0.0.0...255.255.255.255
De nes the client's netmask.
Gateway
0.0.0.0...255.255.255.255
De nes the client's gateway.
MAC address
-
Displays the MAC address of the client.
Network status
0: Running
1: IP error
2: NM error
3: GW error
Displays the status or possible errors of the NTP (client) settings.
Table. 6.1.1. - 118. Status.
Name
Range
Description
NTP quality for events
0: No sync
1:
Synchronized
Displays the status of the NTP time synchronization at the moment.
NOTE: This indication is not valid if another time synchronization method is used
(external serial).
NTP-processed message
count
0...2
32
–1
Displays the number of messages processed by the NTP protocol.
NOTE!
A unique IP address must be reserved for the NTP client. The relay's IP address cannot be
used.
Additionally, the time zone of the relay can be set by connecting to the relay and the selecting the time
zone at
Commands
→
Set time zone
(AQtivate).
6.1.2. Modbus/TCP and Modbus/RTU
The device supports both Modbus/TCP and Modbus/RTU communication. Modbus/TCP uses the
Ethernet connection to communicate with Modbus/TCP clients. Modbus/RTU is a serial protocol that
can be selected for the available serial ports.
The following Modbus function types are supported:
AQ-E215
Instruction manual
Version: 2.01
© Arcteq Relays Ltd
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