diff --git a/src/libCom/sydSubrCA.c b/src/libCom/sydSubrCA.c
index 2e4388c6e..818fa20eb 100644
--- a/src/libCom/sydSubrCA.c
+++ b/src/libCom/sydSubrCA.c
@@ -32,6 +32,7 @@
  * .04	09-23-91	rac	allow async completion of ca_search
  * .05	02-13-92	rac	use ADEL for monitoring; perform time-stamp
  *				rounding if requested
+ * .06	03-08-92	rac	use deadband from pSspec for monitoring
  *
  * make options
  *	-DvxWorks	makes a version for VxWorks
@@ -247,7 +248,8 @@ chid	pCh;		/* channel pointer */
     }
     if (pSChan->evid == NULL) {
 	stat = ca_add_masked_array_event(pSChan->dbrType, pSChan->elCount, pCh,
-		sydCAFuncMonHandler, NULL, 0., 0., 0., &pSChan->evid, DBE_LOG);
+		sydCAFuncMonHandler, NULL, 0., 0., 0., &pSChan->evid,
+		pSChan->pSspec->deadband);
 	if (stat != ECA_NORMAL) {
 	    retStat = S_syd_ERROR;
 	    (void)printf(
diff --git a/src/libCom/sydSubrCF.c b/src/libCom/sydSubrCF.c
index 670b4c177..666549713 100644
--- a/src/libCom/sydSubrCF.c
+++ b/src/libCom/sydSubrCF.c
@@ -4,7 +4,7 @@
  *
  *	Experimental Physics and Industrial Control System (EPICS)
  *
- *	Copyright 1991, the Regents of the University of California,
+ *	Copyright 1991-92, the Regents of the University of California,
  *	and the University of Chicago Board of Governors.
  *
  *	This software was produced under  U.S. Government contracts:
@@ -30,6 +30,7 @@
  * .02  06-19-91	rac	replace <fields.h> with <alarm.h>
  * .03	08-06-91	rac	allow specifying file name
  * .04	09-11-91	rac	finish allowing user specified name
+ * .05	02-27-92	rac	do ts rounding here instead of sydSubr.c
  *
  * make options
  *	-DvxWorks	makes a version for VxWorks
@@ -192,6 +193,10 @@ void	*pArg;		/* I pointer to arg, as required by funcCode */
 		    pSChan->inStatus[i] = SYD_B_FULL;
 		else
 		    pSChan->inStatus[i] = SYD_B_RESTART;
+		if (pSspec->roundNsec > 0) {
+		    sydTsRound(&pSChan->pInBuf[i]->tfltval.stamp,
+							pSspec->roundNsec);
+		}
 	    }
 	    else if ((pChanDesc->flags & AR_CDESC_EOF) != 0)
 		pSChan->inStatus[i] = SYD_B_EOF;
diff --git a/src/libCom/sydSubrPFO.c b/src/libCom/sydSubrPFO.c
index 0a22df3b9..5203a0a04 100644
--- a/src/libCom/sydSubrPFO.c
+++ b/src/libCom/sydSubrPFO.c
@@ -4,7 +4,7 @@
  *
  *	Experimental Physics and Industrial Control System (EPICS)
  *
- *	Copyright 1991, the Regents of the University of California,
+ *	Copyright 1991-92, the Regents of the University of California,
  *	and the University of Chicago Board of Governors.
  *
  *	This software was produced under  U.S. Government contracts:
@@ -28,6 +28,7 @@
  * .00	12-04-90	rac	initial version
  * .01	06-18-91	rac	installed in SCCS
  * .02  06-19-91	rac	replace <fields.h> with <alarm.h>
+ * .03	02-27-92	rac	do ts rounding here instead of sydSubr.c
  *
  * make options
  *	-DvxWorks	makes a version for VxWorks
@@ -150,6 +151,10 @@ void	*pArg;		/* I pointer to arg, as required by funcCode */
 	    pSChan->lastInBuf = bufNum;
 	    if (pSChan->firstInBuf < 0)
 		pSChan->firstInBuf = bufNum;
+	    if (pSspec->roundNsec > 0) {
+		sydTsRound(&pSChan->pInBuf[bufNum]->tfltval.stamp,
+							pSspec->roundNsec);
+	    }
 	}
     }
     else if (funcCode ==				SYD_FC_POSITION) {
diff --git a/src/libCom/sydSubrSSF.c b/src/libCom/sydSubrSSF.c
index 73fe15a1d..c1d423234 100644
--- a/src/libCom/sydSubrSSF.c
+++ b/src/libCom/sydSubrSSF.c
@@ -4,7 +4,7 @@
  *
  *	Experimental Physics and Industrial Control System (EPICS)
  *
- *	Copyright 1991, the Regents of the University of California,
+ *	Copyright 1991-92, the Regents of the University of California,
  *	and the University of Chicago Board of Governors.
  *
  *	This software was produced under  U.S. Government contracts:
@@ -29,6 +29,7 @@
  * .01	06-18-91	rac	installed in SCCS
  * .02  06-19-91	rac	replace <fields.h> with <alarm.h>
  * .03	08-14-91	rac	jjj
+ * .04	02-27-92	rac	do ts rounding here instead of sydSubr.c
  *
  * make options
  *	-DvxWorks	makes a version for VxWorks
@@ -385,8 +386,11 @@ void	*pArg;		/* I pointer to arg, as required by funcCode */
 *		SYD_B_FULL	this is an ordinary sample
 *		SYD_B_EOF	end of file
 *    o  the file will be positioned following the %endHeader% line
+*    o  if time stamp rounding has been requested, it will be done
 *----------------------------------------------------------------------------*/
 	bufStat = sydSSFFuncSeekSample(ssFile, &timeStamp);
+	if (pSspec->roundNsec > 0)
+	    sydTsRound(&timeStamp, pSspec->roundNsec);
 
 /*-----------------------------------------------------------------------------
 *    now, read the actual data.  This is done by processing all the data