diff --git a/code128/encode_test.go b/code128/encode_test.go
index 68b2c05..70b9d50 100644
--- a/code128/encode_test.go
+++ b/code128/encode_test.go
@@ -101,3 +101,31 @@ func Test_Issue16(t *testing.T) {
 	}
 	testEncode(t, string(FNC3)+"$P\rI", "110100001001011110001010010001100111011101101111011101011000100010110001010001100011101011")
 }
+
+func Test_Datalogic(t *testing.T) {
+	// <Start A><FNC3>$P\r<checksum><STOP>
+	testEncode(t, string(FNC3)+"$P\r",
+		"11010000100"+ // <Start A>
+			"10111100010"+ // <FNC3>
+			"10010001100"+ // $
+			"11101110110"+ // P
+			"11110111010"+ // CR
+			"11000100010"+ // checksum = 'I'
+			"1100011101011") // STOP
+
+	// <Start B><FNC3>$P,Ae,P<CR><checksum><STOP>
+	testEncode(t, string(FNC3)+"$P,Ae,P\r",
+		"11010010000"+ // <Start B>
+			"10111100010"+ // <FNC3>
+			"10010001100"+ // $
+			"11101110110"+ // P
+			"10110011100"+ // ,
+			"10100011000"+ // A
+			"10110010000"+ // e
+			"10110011100"+ // ,
+			"11101110110"+ // P
+			"11101011110"+ // <Code A>
+			"11110111010"+ // <CR>
+			"10110001000"+ // checksum = 'D'
+			"1100011101011") // STOP
+}