146 • EtherNet/IP (Ethernet/Industrial Protocol)
General
WAGO-I/O-SYSTEM 750
ETHERNET TCP/IP
Register address 0x2005 (MODBUS Address 408198)
Value Maximum positiv number, GP_MAX_POS
Access Read
Description Constant in order to control arithmetic.
Register address 0x2006 (MODBUS Address 408199)
Value Maximum negativ number, GP_MAX_NEG
Access Read
Description Constant in order to control arithmetic.
Register address 0x2007 (MODBUS Address 408200)
Value Maximum half positiv number, GP_HALF_POS
Access Read
Description Constant in order to control arithmetic.
Register address 0x2008 (MODBUS Address 408201)
Value Maximum half negativ number, GP_HALF_NEG
Access Read
Description Constant in order to control arithmetic.
4.3 EtherNet/IP (Ethernet/Industrial Protocol)
4.3.1 General
EtherNet/IP stands for Ethernet Industrial Protocol and defines an open
industry standard that extends the classic Ethernet with an industrial protocol.
This standard was jointly developed by ControlNet International (CI) and the
Open DeviceNet Vendor Association (ODVA) with the help of the Industrial
Ethernet Association (IEA).
This communication system enables devices to exchange time-critical
application data in an industrial environment. The spectrum of devices ranges
from simple I/O devices (e.g., sensors) through to complex couplers (e.g.,
robots).
EtherNet/IP is based on the TCP/IP protocol family and consequently uses the
bottom 4 layers of the OSI layer model in unaltered form so that all standard
Ethernet communication modules such as PC interface cards, cables,
connectors, hubs and switches can also be used with EtherNet/IP.
Positioned above the transport layer is the encapsulation protocol, which
enables use of the Control & Information Protocol (CIP) on TCP/IP and
UDP/IP.
CIP, as a major network independent standard, is already used with
ControlNet and DeviceNet. Therefore, converting from one of these protocols
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