SMC ESOLC NEPO Rear side Internal circuit To the Thermo-chiller Customer’s machine side 5 7 2 The serial RS-485 enables the following items to be written and read out. Run/Stop Circulating fluid temperature setting Circulating fluid automatic recovery start/ stop.1 Circulating fluid present temperature Circulating fluid flow Circulating fluid discharge pressure Circulating fluid electrical resistivity .2 Alarm occurrence information Status (operating condition) information .1 Only when the circulating fluid automatic recovery function (option Z) is selected. .2 Only when the DI control kit (option Y) is selected. Serial RS-485 Item Specifications Connector no. Connector type (on this product side) Fixing bolt size Standards Protocol Circuit diagram P2 D-sub 9 P type, Female connector M2.6 x 0.45 EIA RS485 Modicon Modbus SD+ SD. SG Connector location P3: Not used for the maintenance purpose port D-sub 9 (Male receptacle) P2: Serial RS-485 D-sub 9 (Female receptacle) P1: Contact input/output D-sub 25 (Female receptacle) Power cable entry Common Specifications Series HRZ 1337 HRG HRS HRZD HRW HEC HEB HED HEA IDH HRZ