diff --git a/soes/esc.h b/soes/esc.h
index 5f85c1d..b14eaad 100644
--- a/soes/esc.h
+++ b/soes/esc.h
@@ -161,17 +161,41 @@
 #define MBXERR_INVALIDSIZE              0x0008
 
 #define ABORT_NOTOGGLE                  0x05030000
+#define ABORT_TRANSFER_TIMEOUT          0x05040000
 #define ABORT_UNKNOWN                   0x05040001
+#define ABORT_INVALID_BLOCK_SIZE        0x05040002
+#define ABORT_INVALID_SEQUENCE_NUMBER   0x05040003
+#define ABORT_BLOCK_CRC_ERROR           0x05040004
+#define ABORT_OUT_OF_MEMORY             0x05040005
 #define ABORT_UNSUPPORTED               0x06010000
 #define ABORT_WRITEONLY                 0x06010001
 #define ABORT_READONLY                  0x06010002
 #define ABORT_SUBINDEX0_NOT_ZERO        0x06010003
+#define ABORT_CA_NOT_SUPPORTED          0x06010004
 #define ABORT_EXCEEDS_MBOX_SIZE         0x06010005
+#define ABORT_SDO_DOWNLOAD_BLOCKED      0x06010006
 #define ABORT_NOOBJECT                  0x06020000
+#define ABORT_MAPPING_OBJECT_ERROR      0x06040041
+#define ABORT_MAPPING_LENGTH_ERROR      0x06040042
+#define ABORT_GENERAL_PARAMETER_ERROR   0x06040043
+#define ABORT_GENERAL_DEVICE_ERROR      0x06040047
+#define ABORT_HARDWARE_ERROR            0x06060000
 #define ABORT_TYPEMISMATCH              0x06070010
+#define ABORT_DATATYPE_TOO_HIGH         0x06070012
+#define ABORT_DATATYPE_TOO_LOW          0x06070013
 #define ABORT_NOSUBINDEX                0x06090011
+#define ABORT_VALUE_EXCEEDED            0x06090030
+#define ABORT_VALUE_TOO_HIGH            0x06090031
+#define ABORT_VALUE_TOO_LOW             0x06090032
+#define ABORT_MODULE_LIST_MISMATCH      0x06090033
+#define ABORT_MAX_VAL_LESS_THAN_MIN_VAL 0x06090036
+#define ABORT_RESOURCE_NOT_AVAILABLE    0x060A0023
 #define ABORT_GENERALERROR              0x08000000
+#define ABORT_DATA_STORE_ERROR          0x08000020
+#define ABORT_DATA_STORE_LOCAL_ERROR    0x08000021
 #define ABORT_NOTINTHISSTATE            0x08000022
+#define ABORT_OBJECT_DICTIONARY_ERROR   0x08000023
+#define ABORT_NO_DATA_AVAILABLE         0x08000024
 
 #define MBXstate_idle                   0x00
 #define MBXstate_inclaim                0x01
diff --git a/soes/esc_coe.c b/soes/esc_coe.c
index 0592a7b..73156fd 100644
--- a/soes/esc_coe.c
+++ b/soes/esc_coe.c
@@ -436,7 +436,7 @@ static uint32_t complete_access_subindex_loop(const _objd *objd,
        (objd->datatype == DTYPE_OCTET_STRING)   ||
        (objd->datatype == DTYPE_UNICODE_STRING))
    {
-      return ABORT_UNSUPPORTED;
+      return ABORT_CA_NOT_SUPPORTED;
    }
 
    uint32_t size = 0;