2 Connecting to SIEMENS PLCs 2-4-2 SIEMENS S7-300/400 (PC Adapter Direct) Note The initial addresses of DBm.DBW and DBm.DBD must be even. Address format description: D: decimal, O: octonary, H: hexadecimal. 2-4-3 SIEMENS S7-200 (Smart) Ethernet (TCP Slave) Note When you access word access and double word access memories, always specify even address. 2-28 NB-series Programmable Terminals Host Connection Manual (V108) Device Bit Address Word Address Format Notes External Input Nodes I 0.0~511.7 ------ DDDD.O External Output Nodes Q 0.0~511.7 ------ DDDD.O Internal Auxiliary Nodes M 0.0~4095.7 ------ DDDD.O Data Register Nodes DBm.DBX 0~65535.7 ------ DDDDD.O m:
10 to 29 Data Registers ------ DBm.DBW 0~65534 DDDDD m: 10 to 60 Data Registers (32-bit) ------ DBm.DBD 0~65532 DDDDD m:
10 to 60 Internal Registers ------ MW 0~2046 DDDD Internal Registers (32-bit) ------ MD 0~2044 DDDD External Output Registers ------ QW 0~126 DDD External Output Registers (32-bit) ------ QD 0~124 DDD External Input Registers ------ IW 0~126 DDD External Input Registers (32-bit) ------ ID 0~124 DDD Device Bit Address Word Address Format Notes Discrete Input and Map Register Nodes I.B 0.0~31.7 ------ DD.O Internal Memory Bit M.B 0.0~31.7 ------ DD.O Discrete Output and Map Register Nodes Q.B 0.0~31.7 ------ DD.O SCR Nodes S.B 0.0~31.7 ------ DD.O Special Memory Bit SM.B 0.0~1535.7 ------ DDDD.O Variable Memory Nodes V.B 0.0~8191.7 ------ DDDD.O Analog Inputs ------ AIW 0~110 DDD Analog Outputs ------ AQW 0~110 DDD Discrete Input and Map Registers (32-bit) ------ ID 0~28 DD Discrete Input and Map Registers ------ IW 0~30 DD Internal Memory (32-bit) ------ MD 0~28 DD Internal Memory ------ MW 0~30 DD Discrete Output and Map Registers (32-bit) ------ QD 0~28 DD Discrete Output and Map Registers ------ QW 0~30 DD SCR (32-bit) ------ SD 0~28 DD Special Memory Registers (32-bit) ------ SMD 0~1532 DDDD Special Memory Registers ------ SMW 0~1534 DDDD SCR ------ SW 0~30 DD Variable Memory (32-bit) ------ VD 0~8188 DDDD Variable Memory ------ VW 0~8190 DDDD