下面程序为使用功能块及语句表程序做的设备累计时间，有清零功能
A M 63.1
= L 28.0
A(
A #start_stop_rtm
= L 28.1
BLD 103
A L 28.0
JNB _001
CALL "CTRL_RTM"
NR :=#rtm_nr
S :=L28.1
RET_VAL:=#ret_value_ctrl_rtm
_001: A BR
)
JNB _002
CALL "READ_RTM"
NR :=#rtm_nr
RET_VAL:=#ret_value_read_rtm
CQ :=#dummy_bit
CV :=#rtm_value_int
_002: NOP 0
A(
A L 28.0
JNB _003
L W#16#8081
T #dummy_i
SET
SAVE
CLR
_003: A BR
)
A(
L #ret_value_set_rtm2
L #dummy_i
==I
)
JNB _004
CALL "SET_RTM"
NR :=#rtm_nr
PV :=0
RET_VAL:=#ret_value_set_rtm1
_004: NOP 0
A L 28.0
A #reset_rtm
JNB _005
CALL "SET_RTM"
NR :=#rtm_nr
PV :=0
RET_VAL:=#ret_value_set_rtm2
_005: NOP 0
A(
A L 28.0
JNB _006
L #rtm_value_int
ITD
T #dummy_di
SET
SAVE
CLR
_006: A BR
)
JNB _007
L #dummy_di
DTR
T #rtm_value_real
_007: NOP 0