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I/O Expansion
XP-8000/XP-8000-CE6 provides the following I/O expansion bus

Local I/O Slot:
There are 0/1/4/8 slot options to expand local I/O. And the I/O modules can be parallel bus type (high profile I-8K series) and serial bus type (high profile I-87K series). The difference between them is
 
Item
I-8K Series
I-87K Series
Microprocessor
No
Yes (8051)
Communication interface
Parallel bus
Serial bus
Communication speed
Fast
Slow
DI latched function
No
Yes
Counter input (for digital input module)
No
Yes (100 Hz)
Power on value
No
Yes
Safe value
No
Yes
Programmable slew-rate for AO module
No
Yes
 
 
Ethernet:
The available Ethernet I/O devices are ET-7000, ET-7200, ET-87P4/8-MTCP and I-8KE4/8-MTCP. XP-8000/XP-8000-CE6 can access them in Modbus/TCP protocol. A nModbus.dll is provided for C#, VB.net programming.
 
RS-485:
XP-8000/XP-8000-CE6 is equipped with two RS485 COM ports which enable the transmission rate up to a maximum of 115.2 Kbps. The medium for connection is a twisted-pair, multi-drop, 2-wire RS-485 network that can link I-7000, M-7000, RU-87Pn with high profile I-87K modules.
To access M-7000, a nModbus.dll is provided for C#, VB.net programming.
To access I-7000 and RU-87Pn with high profile I-87K modules, PACSDK is provided for C#, VB.net, VC and VB programming.
 
FRnet:
FRnet is an innovative industrial field bus that has many special features, such as high-speed deterministic I/O control, real I/O synchronization capabilities, non-protocol communication, and easy programming. With a FRnet communication module (I-8172W), the XP-8000/XP-8000-CE6 can link FRnet I/O modules to implement high-speed distributed I/O (FR-2000 series). To access I-8172W, a pac_i8172w.dll is provided for C#, VB.net, VC and VB programming.
 
 
CAN Bus:
The Controller Area Network (CAN) is a serial communication way, which efficiently supports distributed real-time control with a very high level of security. It provides the error-processing mechanisms and concepts of message priority. These features can improve the network reliability and transmission efficiency. Furthermore, CAN supplies the multi-master capabilities, and is especially suited for networking“intelligent” devices as well as sensors and actuators within a system or a sub-system. With I-8123, I-8124, I-87120, XP-8000/XP-8000-CE6 is able to demonstrate every feature of CAN, CANopen, and DeviceNet.
 
 
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