Converting value of an integer variable to a character is fairly simple. The simplest way is by displaying the value of a decimal using SNDPGMMSG. The SNDPGMMSG command can only display values from *CHAR variables, it needs to be converted from *DEC to *CHAR. The good thing, CLP can automatically convert only by using the CHGVAR (Change Variable) command.
PGM
/* DECLARE 2 VAR, CHARACTER AND DECIMAL */
/* DEFINE VALUE &DEC = 1 */
DCL VAR(&DEC) TYPE(*DEC) LEN(2) VALUE(1)
DCL VAR(&OUTPUT) TYPE(*CHAR) LEN(2)
/* CONVERT FROM INT TO CHAR */
/* SET VALUE &OUTPUT FROM &DEC VALUE */
CHGVAR VAR(&OUTPUT) VALUE(&DEC)
/* SHOW THE VALUE */
SNDPGMMSG MSG(&OUTPUT)
ENDPGM

Compile and run the program.
