4-channel transmitter 7470 with serial data RS-485/232 input - 1 Pages

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4-channel transmitter 7470 with serial data RS-485/232 input

Catalog excerpts

www.nokeval.com sakes@nokeval.com 4-channel transmitter 7470 with serial data RS-485/232 input • • • • 4 output channels 0..20mA 4..20mA 0..5V and 0..10V Serial data input RS-232 and RS-485 Simple Nokeval SCL protocol Configuration with a hand held programmer 6790 or by MekuWin program via serial bus • DIN-rail mounting (35mm) • Power supply 18..28 VDC The transmitter 7470 provides an economical means of converting digital data to analog signals, mA / V, and transmitting them to four field instruments. Configuration is simple by MekuWin program or the general purpose hand held programmer 6790. The transmitter uses the simple Nokeval SCL protocol. One serial data bus accepts 31 7470 transmitters or other serial instruments, that is 124 output channels. Typical applications are PC-based programs or PLC. Serial data converter RS485 / RS232 (711 or 721) Technical specification: Current output: Outputs Max. load Common negative wire 7470 Voltage output: Outputs Max. load Common negative wire 0.1% of span 0.06% of span 0.005% of span / °C Accuracy Linearity Temperature effect Response time of output 4.7ms + response time 67% of end value 12.5ms +response time 93% of end value 150ms +response time 100% of end value RS-485/RS-232 input Both selectable in terminals Galvanically isolated from outputs Nokeval SCL protocol General: DAC conversion Power supply Power consumption Power demand IP protection Mounting Weight

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