模拟转换器7470

数字 的RS422 / RS485 rs - 232

4通道发射机7470与串行数据RS-485/232输入•4输出通道0..20 ma 4 . .20 ma 0 . .5 v和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.