Byte order in hardware configurator for 370 telegrams

Hello! I need help. In Hardware Configure for 370 telegram reserved 24...25 IO adress. Is it right that for input direction (from slave): 24.0-STW1.0,  24.1-STW1.1 ....24.7-STW1.7, 25.0-STW1.8....25.7-STW1.15.

And for output direction (to slave): 24.0-ZSW1.0,  24.1-ZSW1.1 ....24.7-ZSW1.7, 25.0-ZSW1.8....25.7-ZSW1.15.

Or I'm wrong? Thanks for the answer)

Which is drive? CU?

Who is master? Slave?

Type of Communication, profibus, modbus, USS?

Master - Simatic 400, CPU414-2DP;

Slave - S120, cu320-2DP;

communication - profibus;

Hello,

STW1.0 to STW 1.15 is a (STW1) 1st control word i.e. from MASTER (PLC) to SLAVE (INFEED) &

BYTE ORDER PLC O25.7 = STW 1.15, O25.6 = STW 1.14, O25.0 = STW 1.8 ...... O24.0 = STW 1.0  

ZSW1.0 to ZSW 1.15 is a (ZSW1) 1st status word from SLAVE (INFEED) to MASTER (PLC) & 

BYTE ORDER PLC Input I25.7 = ZSW1.7, I25.6 = ZSW1.6 ..... I24.0 = ZSW 1.8, I24.7 = ZSW 1.15

HTH.

PISCEAN 2010

Hello,

STW1.0 to STW 1.15 is a (STW1) 1st control word i.e. from MASTER (PLC) to SLAVE (INFEED) &

BYTE ORDER PLC O25.7 = STW 1.15, O25.6 = STW 1.14, O25.0 = STW 1.8 ...... O24.0 = STW 1.0  

ZSW1.0 to ZSW 1.15 is a (ZSW1) 1st status word from SLAVE (INFEED) to MASTER (PLC) & 

BYTE ORDER PLC Input I25.7 = ZSW1.7, I25.6 = ZSW1.6 ..... I24.0 = ZSW 1.8, I24.7 = ZSW 1.15

HTH.

 to final confirmation) The order of bytes from the master Little Endian, and by slave Big Endian (swap byte order? There any references about it?

I think everyone, like me, is trying to figure out what your problem is.

It's 5 words.  Not really difficult to figure out. 

SEND

Word1 1 Commands

Word 2-5 Nothing

Receive

Word 1 Status

Word 2 Frequency

Word 3 Current

Word 4 Power

Word 5 Fault Code.

So what part do you not understand?  You have been fooling around with this for more than a week and it's just an infeed.

Fillip

 

PISCEAN 2010

Hello,

STW1.0 to STW 1.15 is a (STW1) 1st control word i.e. from MASTER (PLC) to SLAVE (INFEED) &

BYTE ORDER PLC O25.7 = STW 1.15, O25.6 = STW 1.14, O25.0 = STW 1.8 ...... O24.0 = STW 1.0  

ZSW1.0 to ZSW 1.15 is a (ZSW1) 1st status word from SLAVE (INFEED) to MASTER (PLC) & 

BYTE ORDER PLC Input I25.7 = ZSW1.7, I25.6 = ZSW1.6 ..... I24.0 = ZSW 1.8, I24.7 = ZSW 1.15

HTH.

 to final confirmation) The order of bytes from the master Little Endian, and by slave Big Endian (swap byte order? There any references about it?

 See attachment image, that's what I need....but I have I have a doubt obout different order)