ICP128I INVALID PROTOCL VALUE. MUST BE D, S, OR S4

Explanation
A character other than D, S, or S4 was found as the keyword value
in the PROTOCL parameter. 

System action
IOCP continues to validate and check the syntax of the remaining
statements. However, it does not generate an IOCDS and it does not
produce configuration reports. 

Programmer response
Correct the keyword value.