Siemens
Siemens S7 -----------------------------------------------------------------------------------------------------------
Model Types (Each Model will be listed under “Protocol”)
Member |
Description |
S7_1200 |
S7-1200 & S7-1500 families |
S7_200 |
S7-200 family |
S7_300 |
S7-300 family |
S7_400 |
S7-400 family |
Data Type
Member |
Description |
BCD16 |
16-bit BCD integer. Occupies two contiguous registers on the hardware device. |
BCD32 |
32-bit BCD integer. Occupies four contiguous registers on the hardware device. |
BCD8 |
8-bit BCD integer. Occupies a single register on the hardware device. |
Byte |
8-bit unsigned integer. Occupies a single register on the hardware device. |
Int16 |
16-bit signed integer. Occupies two contiguous registers on the hardware device. |
Int32 |
32-bit signed integer. Occupies four contiguous registers on the hardware device. |
SByte |
8-bit signed integer. Occupies a single register on the hardware device. |
Single |
IEEE 32-bit floating point. Occupies four contiguous registers on the hardware device. |
String |
ASCII string that can hold up to 254 characters. |
Structure |
|
UInt16 |
16-bit unsigned integer. Occupies two contiguous registers on the hardware device. |
UInt32 |
32-bit unsigned integer. Occupies four contiguous registers on the hardware device. |
Link Type
Member |
Description |
OP |
Generally used by operator panels, but can be used if no PC connections are available. |
PC |
Generally used by applications. Referred to as S7 Standard Communication in Step 7. |
PG |
Generally used by programming devices, but can be used if no PC connections are available. |