76 43-TV-25-30 Iss.6 GLO Aug 07 UK
• Modbus - Communications protocol for Ethernet and RS485. See “Modbus” on
page 77.
• Web -Browse your recorder using the web browse feature. See “Web” on page 80.
• Email - Setup email accounts to send alarm and event information. See “Email” on
page 80.
• SNTP - Simple Network Time Protocols is a protocol for synchronising the clock
on the recorder with a Network Server. See “SNTP” on page 82.
• FTP (File Transfer Protocol) - used to transfer data to and from the recorder. See
“FTP (File Transfer Protocol)” on page 83
.
• Peers - Sets up the recorder to be identified on a network (Peer to Peer).
See
“Peers” on page 83.
Standard Communication Interfaces
Rear Ethernet Communication Port
The rear of the recorder is fitted with an Ethernet10/100 port and RS485 port, which sup-
ports:
• RS485 Modbus protocol and TCP/IP Modbus.
• Web Browser.
See “Web” on page 80
• OPC Server connectivity to third party software. OPC Server connection must be ena-
bled by selecting the OPC option in “Credits” on page 102. For more details on
OPC Servers see
“OPC Interface - Open Process Control” on page 232
Rear RS485 Port
(A Comms option card and expansion card are required for the eZtrend QXe recorder).
• RS485: 2 wire to support Modbus RTU.
The RS485 connector plugs into the back of the recorder. Recorders can be setup as either
Master or Slave devices. See Figure , “Modbus Master Communications,” on page 77.
Front and Rear USB Communication Ports
The front and rear of the Minitrend QX and Multitrend SX recorders are fitted with a USB
communication port.
The eZtrend QXe recorder has a USB port at the front, as standard
and another available at the rear as an option.
The USB Host ports will provide an interface for:
• Save and Load Data
• Save and Load Setups
• External keyboard & mouse
• Barcode reader
• Mass storage device (USB key)
• Local printer
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