diff --git a/utils/Makefile b/utils/Makefile
index d73a8f7..2534b64 100644
--- a/utils/Makefile
+++ b/utils/Makefile
@@ -4,7 +4,10 @@ include ../config.mk
 
 CFLAGS:=${CFLAGS} -I../library
 
-all : vxi11_cmd vxi11_send
+all : vxi11_cmd vxi11_send vxi11_scdp
+
+vxi11_scdp: vxi11_scdp.o ../library/libvxi11.so.${SOVERSION}
+	$(CC) -o $@ $^ $(LDFLAGS)
 
 vxi11_cmd: vxi11_cmd.o ../library/libvxi11.so.${SOVERSION}
 	$(CC) -o $@ $^ $(LDFLAGS)
diff --git a/utils/vxi11_scdp.c b/utils/vxi11_scdp.c
new file mode 100644
index 0000000..8b89f57
--- /dev/null
+++ b/utils/vxi11_scdp.c
@@ -0,0 +1,103 @@
+/* vxi11_scdp.c
+ * Copyright (C) 2006 Steve D. Sharples
+ * Copyright (C) 2020 Harald Barth
+ *
+ * A simple interactive utility that allows you to send commands and queries to
+ * a device enabled with the VXI11 RPC ethernet protocol. Uses the files
+ * generated by rpcgen vxi11.x, and the vxi11_user.h user libraries.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ * 
+ * The author's email address is steve.sharples@nottingham.ac.uk
+ */
+
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#include "vxi11_user.h"
+/* support max 2MB sized BMPs */
+#define BUF_LEN 800000
+
+#ifdef WIN32
+#define strncasecmp(a, b, c) stricmp(a, b)
+#endif
+
+int main(int argc, char *argv[])
+{
+
+        int err = 0;
+	char *device_ip;
+	char *device_name = "unknown";
+	char *filename;
+	char buf[BUF_LEN];
+	int ret;
+	long bytes_returned;
+	VXI11_CLINK *clink;
+
+	if (argc < 2) {
+		printf("usage: %s your.inst.ip.addr filename\n", argv[0]);
+		exit(1);
+	}
+
+	device_ip = argv[1];
+	if (argc > 2) {
+		filename = argv[2];
+	}
+	if (argc > 3) {
+	    exit(255);
+	}
+
+	if(vxi11_open_device(&clink, device_ip, device_name)){
+		printf("Error: could not open device %s, quitting\n",
+		       device_ip);
+		exit(2);
+	}
+
+	memset(buf, 0, BUF_LEN);	// initialize buffer
+	
+	if (vxi11_send(clink, "SCDP", 4) < 0) {
+	    printf("*** [ VXI11 send failed ] ***\n");
+	    exit(255);
+	}
+	bytes_returned = vxi11_receive(clink, buf, BUF_LEN);
+	if (bytes_returned > 0) {
+	    int f;
+	    printf("%ld bytes received ", bytes_returned);
+	    f = open(filename, O_CREAT|O_TRUNC|O_RDWR, 0644);
+	    if (bytes_returned == write(f, buf, bytes_returned) && (err = close(f)) == 0)
+		printf("and saved in %s", filename);
+	    else {
+		if (!err)
+		    err = 1;
+		printf("and save error to file %s", filename);
+	    }
+	    printf("\n");
+	} else if (bytes_returned == -15) {
+	    err = 15;
+	    printf("*** [ NOTHING RECEIVED ] ***\n");
+	} else {
+	    err = 128;
+	    printf("*** [ unknown error ] ***\n");
+	}
+
+	ret = vxi11_close_device(clink, device_ip);
+	exit (err);
+}