Experimental Physics and
Industrial Control System

Ivan So <[email protected]> · Wed, 11 Feb 2004 17:40:34 -0500

We (NSLS Beamline Controls) are using modtcp and Wago under Linux and
VxWorks.
The original code was from Triumf, Canada.
I need to change the offset with BO_OFFSET in drvModtcp.c:
#define WAGO
#if defined(WAGO)
unsigned short BO_OFFSET=0x200;
#else
unsigned short BO_OFFSET=0x0;
#endif
===============================================
int modtcpWrite(int index, int addr, unsigned short mask, unsigned short
*pData)

{

PLC_ID pPlc;

SOCKET_ID pSock;

int i, error, ok;

unsigned short outval, *pOut;
       pPlc = Plcs[index];
       if (!pPlc->pSock2->tcpsFd) return -1;
 pOut = pPlc->memStart + addr + BO_OFFSET - 1;
==================================================
 /* set pFrom pointer to begin of EPICS local
buffer or to VME slave memory (SDLC) */

if (pGr->readAddr < pPlc->memLength) pFrom =
pPlc->memStart + pGr->readAddr + BO_OFFSET - 1;
===================================================
Just to give you some ideas.
I am going to clean this up after other higher priority jobs. May be
then we could generate some useful diff's for you.
Good luck.
Ivan  So
NSLS, BNL

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System