The I-8417 / 8817 default has 4 serial ports including 2 RS-232, 1 RS-485 and 1 RS-232/485. COM1:RS232 and COM2:RS485 both support Modbus RTU slave protocol. The PC/HMI/OPC Server and Touch panel can communicate to COM1 and COM2 easily by Modbus RTU protocol. I-8417 / 8817 also support up to 2 COM ports of Modbus RTU / ASCII master protocol to integrate with other Modbus devices. For non-Modbus devices, I-8417 / 8817 can use many serial communication function blocks to communicate to them. I-8417 / 8817 can also add extra RS232 or RS422 or RS485 ports by adding the I-8112/8114/8142/8144 multi-serial boards.
I-8417 / 8817 supports I-8K & I-87K I/O boards. There are more than 50 I/O boards available including DI, DO, AI, AO, Relay, Counter, frequency, Thermo-couple, RTD, Thermistor, Motion, … Up to 256 local I/O points can be used in slot 0 to slot 7. More I/O can be expanded by remote I-7000 serial I/O modules and I-87K I/O boards via RS485 communication port.
With an optional S-256 / S-512 battery backup SRAM plug in the back-plane of the controller, the I-8417 / 8817 can support up to 1024 retain variables and can use up to 244/500 K bytes retain memory for storing application data and parameter.
Features
- Support Modbus RTU slave protocol. PC/HMI & Touch panel can connect to COM1 & COM2 at the same time.
- COM2 supports Modbus RS485 network, up to 255 multi-drop, it is better not using more than 32 nodes.
- Supports remote download program via Modem
- Supports auto-scan I/O in slot 0 to 7
- I-8K & I-87K D/I/O boards have LEDs to display I/O state.
- Supports I-7000 remote IO & I-87K expansion IO
- Supports SST-2450 wireless communication Modems
- Support up to 2 Modbus RTU / ASCII master COM ports
- Support serial port Read/Write function blocks to communicate to various serial devices
- Supports floating point calculation & String format
- Supports retain variables & battery backup memory
- SMS: supports Short Message Service when integrated with a M1206 or GM29 GSM Modem to send / receive Short Message to / from cellular phone
- Supports EKAN Modbus LED
- Software: IEC61131-3: ISaGRAF Version 3
- Supports ISaGRAF variable array, for ex, Ain[0..15],…