diff --git a/nodave.c b/nodave.c
index fa8f407..7153118 100644
--- a/nodave.c
+++ b/nodave.c
@@ -4002,7 +4002,7 @@ int DECL2 _daveConnectPLCTCP(daveConnection * dc) {
 
 	0xC0,		// Parameter requested TPDU-Size
 	1,		// Length of this parameter 
-	9,		// requested TPDU-Size 8=256 Bytes, 9=512 Bytes 
+	10,		// requested TPDU-Size 8=256 Bytes, 9=512 Bytes, 10=1024 bytes needed to use 960 bytes PDU on S7-1500 
     };	
 
     uc b243[]={
@@ -5283,7 +5283,7 @@ int DECL2 _daveConnectPLC_IBH(daveConnection*dc) {
     dc->ibhDstConn=20-1;
     retries=0;
     do {
-	if (daveDebug & daveDebugConnect)  // show only if in debug mode
+	if (daveDebug & daveDebugConnect)  // show only if in debug mode
 	    LOG1("trying next ID:\n");
 	dc->ibhSrcConn++;
 	chal3[8]=dc->ibhSrcConn;