Memory Cassette Capacity And Program Size - Omron CQM1H - PROGRAM Programming Manual

Using Memory Cassettes
Note
Contents

3-11-2 Memory Cassette Capacity and Program Size

1,2,3...
Memory Model
Flash (see CQM1H-ME16K 16 Kwords without clock
notes 1 and
CQM1H-ME16R 16 Kwords with clock
2)
EPROM CQM1-MP08K
(see note
CQM1-MP08R
2)
1. Data can be read and written for a EEPROM Memory Cassette with a Pro-
gramming Device.
2. Data can be read from a EPROM Memory Cassette with a Programming
Device, but must be written with a PROM Writer. An EPROM chip with
8 Kwords, 16 Kwords, or 32 Kwords can be installed in the Memory Cas-
sette.
3. The CQM1H-ME16K and CQM1H-ME16R cannot be used in CQM1 PCs.
The following EPROM chips (sold separately) are required for EPROM Mem-
ory Cassettes.
Model ROM version
ROM-ID-B 27128 or equivalent 8 Kwords
ROM-JD-B 27256 or equivalent 16 Kwords
ROM-KD-B 27512 or equivalent 32 Kwords
Refer to the CQM1H Operation Manual for details on replacing EPROM chips
and changing the Memory Cassette's EPROM version switch settings.
The data stored in a Memory Cassette is mainly the CPU Unit's read-only DM,
PC Setup, and program, as shown in the following table. All of this data is han-
dled as a single unit; the 4 areas cannot be read, written, or compared individ-
ually.
Information
DM Read-only area
area
PC Setup
Expansion instruction
assignments
User program
The following table shows the largest program that can be stored in each size
Memory Cassette.
Memory Cassette size
4 Kwords
8 Kwords
16 Kwords
A non-fatal error will occur and the transfer will not be executed if an attempt is
made to store a program that is too large for the Memory Cassette or read a
program that is too large for the CPU Unit. Two examples are shown below.
1. When a 4-Kword EEPROM Memory Cassette is installed in a CPU Unit
with a 7.2-Kword UM (user program) area, programs up to 3.2 Kwords long
can be written to the Memory Cassette. A non-fatal error will occur if an at-
Specifications
8 Kwords, 16 Kwords, or 32 Kwords without clock
8 Kwords, 16 Kwords, or 32 Kwords with clock
Capacity
Contents
Read-only DM cannot be written from the program.
The range is DM 6144 to DM 6568. These words
can be used freely.
The PC Setup sets the operating parameters of the
CQM1H and it stored in DM 6600 to DM 6655.
These settings indicate which expansion instruc-
tions have been assigned function codes.
The entire user program
Max. program size
3.2 Kwords
7.2 Kwords
15.2 Kwords
Section 3-11
Access speed
150 ns
150 ns
150 ns
175