Delta AH500 — 2.2.7 Special Auxiliary Relays

AH500 Programming Manual 2-40 CPU5X0-RS2 CPU5X0-EN CPU5X1-RS2 CPU5X1-EN Attribute Default OFF STOP RUN SM Function    ON RUN STOP *SM1808 ↓ SM1815 Status of the Ether Link (port 0) ↓ Status of the Ether Link (port 7) ○ ○ × × OFF – – R OFF An error occurs when COM2 reads data from slave 25~32 by Modbus. × × ○ × OFF – – R OFF *SM1816 ↓ SM1823 Status of an Ether link (port 8~15) ○ ○ × × OFF – – R OFF An error occurs when COM2 writes data to slave 1~8 by Modbus. × × ○ × OFF – – R OFF SM1824 ↓ SM1847 Block 1~24 for an Ether link is active. ○ ○ × × OFF – – R OFF An error occurs when COM2 writes data to slave 9~32 by Modbus.

× × ○ × OFF – – R OFF SM1848 ↓ SM1879 Block 25~56 for an Ether link is active. ○ ○ × × OFF – – R OFF COM2 finishes reading data from slave 1~32 by Modbus. × × ○ × OFF – – R OFF SM1880 ↓ SM1911 Block 57~88 for an Ether link is active. ○ ○ × × OFF – – R OFF COM2 finishes writing data to slave 1~32 by Modbus. × × ○ × OFF – – R OFF SM1912 Block 89 for an Ether link is active. ○ ○ × × OFF – – R OFF COM2 reads data and writes data simultaneously by Modbus. × × ○ × OFF – – R/W OFF SM1913 ↓ SM1944 Block 90~121 for an Ether link is active. ○ ○ × × OFF – – R OFF Enabling a Modbus connection between COM2 and slave 1~32. × × ○ × OFF – – R/W OFF SM1945 ↓ SM1951 Block 122~128 for an Ether link is active.

○ ○ × × OFF – – R OFF *SM2000 The data is sent by using the instruction EMDRW 1. × ○ × ○ OFF OFF OFF R/W OFF *SM2001 The PLC waits for the data after the instruction EMDRW 1 is used. × ○ × ○ OFF OFF OFF R OFF *SM2002 The data is received by using the instruction EMDRW 1. × ○ × ○ OFF OFF OFF R/W OFF *SM2003 An error occurs when the instruction EMDRW 1 is used. × ○ × ○ OFF OFF OFF R OFF *SM2004 There is a timeout after the instruction EMDRW 1 is used. × ○ × ○ OFF OFF OFF R OFF *SM2005 The connection is closed after the instruction EMDRW 1 is used. × ○ × ○ ON ON ON R ON *SM2006 The data is sent by using the instruction EMDRW 2.

× ○ × ○ OFF OFF OFF R/W OFF *SM2007 The PLC waits for the data after the instruction EMDRW 2 is used. × ○ × ○ OFF OFF OFF R OFF *SM2008 The data is received by using the instruction EMDRW 2. × ○ × ○ OFF OFF OFF R/W OFF *SM2009 An error occurs when the instruction EMDRW 2 is used. × ○ × ○ OFF OFF OFF R OFF