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CHAPTER 2: SPECIFICATIONS
2.1
Power Supply Specifications
When using MODBUS TCP, power supply ratings and accuracies are the same as for digital remote
programming and monitoring using RS-232/485, USB or LAN. Refer to USER MANUAL (IA761-04-02_) for
those specifications.
2.2
MODBUS TCP Specifications
ELECTRICAL
ETHERNET Meets IEEE 802.3u specifications
Auto-MDIX Accepts patch or cross-over cable connection
Auto-Negotiate Selects fastest of 10Base-T or 100Base-T networks (10 or 100
Megabits per second (Half or Full Duplex)
NETWORK CONFIGURATION
MAC Address MODBUS TCP has a unique MAC address (different from the built-in
LAN).
IP Address View or set from front panel or embedded web page
DHCP Receive address from network server. Lease service.
Static IP Any IP fixed by operator
Address Resolution ARP Protocol
Hostname DNS protocol. Operator settable hostname.
Subnet Mask Mask set by DHCP or Static
Default Gateway Address set by DHCP or Static
DNS Server
PING Server
Address set by DHCP
Verify MODBUS TCP connection to instrument
MODBUS TCP Reset Reset to default configuration
MODBUS TCP PROTOCOLS
TCP MODBUS TCP packets follow Transmission Control Protocol
IPv4 Internet Protocol version 4
COMMANDS
MODBUS TCP MODBUS TCP packets follow Transmission Control Protocol
MULTIPLE CONTROLLERS
Multiple Client Up to 4 concurrent web pages or 4 TCP socket channels
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