Rockwell Automation 1771-DMC_DMC1_DMC4_DXPS Control Coprocessor User Manual - Manual (Page 222)

API Library of Routines
Appendix B
MSG_READ_HANDLER
B-91
cc_type
This is the data type of the control-coprocessor data buffer.
Possible values are:
Value Symbolic Name ¬ C" Type
0 CC_RAW no conversion
1 CC_BYTE char
2 CC_UBYTE unsigned char
3 CC_WORD short
4 CC_UWORD unsigned short
5 CC_LONG long (int)
6 CC_ULONG unsigned
7 CC_FLOAT float
8 CC_DOUBLE double
¬ These symbolic names are in COPRO.H.
plc_type
This is the data type of the PLC-5 data-table area. Possible values are:
Value Symbolic Name ¬ C" Type
3 PLC_WORD short
7 PLC_FLOAT float
¬ These symbolic names are in COPRO.H.
iostat
This parameter returns a final completion status. Possible completion
status values are:
Value Meaning
0 CC_SUCCESS = operation completed successfully
101 CC_PENDING = I/O operation in progress
118 CC_E_TIME = operation did not complete in time
127 CC_E_NOATMPT = operation not attempted; see status value for reason
141 CC_E_CNVT = dataĆconversion error
182 CC_E_MSG_ABORT = message aborted by CC_MKILL
xxx ¬ PCCC_E_xxx = operation refused by the PLCĆ5 programmable controller
¬ See Table B.A for PCCC errors.