Mitsubishi A1SH - Appendix 3.2 Dissimilarities between A2 SHCPU(-S1) and A2 SCPU; Appendix 3.3 Precautions When Switching the Model; Appendix 3.3.1 PLC Type Setting; Appendix 3.3.2 the Precaution When Performing the ROM Cutoff

APPENDICES
APP - 37
MELSEC-
A
Appendix 3.2 Dissimilarities between A2SHCPU(-S1) and A2SCPU
The dissimilarities between the A2SHCPU(-S1) and A2SCPU are as follows :
Item A2SHCPU(-S1) A2SCPU
1 CPU processing speed *1 0.25
µ
s1
µ
s
2 I/O points 2048 points *2 512 points
3 File register capacity (R) Max. 8192 points (R0 to 8191) Max. 4096 points (R0 to 4095)
4 CC-Link dedicated instruction 8 None
5 Startup model A3 A2
6 Microcomputer program There are some restrictions. There is no restrictions.
7
Conventional memory cassette
A2SMCA-14KE/14KP
× {
New-type memory cassette
A2SNMCA-30KE
{{
Year, month, day, hour, minute, day of week (Automatic leap year calculation)
8 Clock precision
Precision
-3.1 to +5.3 s(TYP. +1.7 s)/d at 0 °C
-1.6 to +5.3 s(TYP. +2.4 s)/d at 25 °C
-9.6 to +3.6 s(TYP. -2.1 s)/d at 55 °C
Precision
-2.3 to +4.4 s(TYP. +1.8 s)/d at 0 °C
-1.1 to +4.4 s(TYP. +2.2 s)/d at 25 °C
-9.6 to +2.7 s(TYP. -2.4 s)/d at 55 °C
*1 : I/O processing : during refresh and LD instruction execution
*2 : Actual I/O points are the same as the AnS series, but this model has 2048 points of I/O device
for each CPU (X/Y0 to 7FF). The added I/O device can be used for MELSECNET (/B),
MELSECNET/MINI, or CC-Link.
Appendix 3.3 Precautions when Switching the Model
Appendix 3.3.1 PLC type setting
The PLC type becomes "A3" to enable the use of 2048 input device points X/Y,
file register R8192 points and LEAD/LEDB instructions.
Appendix 3.3.2 The precaution when performing the ROM cutoff
When performing the ROM cutoff of A1SJHCPU and A1SHCPU with SW4GP-
GPPA, the startup model must be changed as following.
Startup model
Before software version Q A0J2H
Aafter software version R A1S