Mitsubishi Electric MELSEC-Q Series Programming Manual page 91

Operation Error
Error code Description
4101 When the step relay (Sn) range is exceeded
Program Examples
• The following program reads the active step status of 48 steps (3 words), starting from step 0 of block 3, to D0 - D2 when
X0 turns ON.
When step is designated by operation output of block 3
When step is designated by operation output of other than block 3
When step is designated by sequence program
■Related Instructions
SFC control instructions
• Block switching instruction (BRSET) (Refer to  Page 103 Block switching instruction (BRSET).)
• Step operation status check instruction (a, b, &a, &b, |a, |b) (Refer to  Page 76 Step operation status check instructions
(a, b, &a, &b, |a, |b) [Sn/BLm\Sn].)
• Active step batch readout instruction (MOV, DMOV) (Refer to  Page 84 Active step batch readout (MOV and DMOV).)
4.4 Controlling SFC Programs by Instructions (SFC Control Instructions)
4 SFC PROGRAM CONFIGURATION
4
89