A SERVICE OF

logo

2
- 22
2.6 Precautions for System Configuration
2.6.3 Precautions for using database
2
SYSTEM CONFIGURATION
(2) Microsoft
®
Access
®
(a) The number of fields to be updated (UPDATE) by the one [Communication action]
is up to 127.
(b) Do not make multiple accesses to one and the same file.
(Do not make access from multiple MES interface modules.)
(c) There are some restrictions for the data type which can be assigned to tag
component, constant value, and variable with MES Interface Function
Configuration Tool.
Section 7.11.1 (1) About tag components
Section 7.11.1 (2) About constants
Section 7.11.1 (3) About variables
(3) Wonderware
®
Historian
(a) The insertion (INSERT) only can be used with [Communication action].
(b) The rollback of insertion (INSERT) to the database is disabled.