ModBMS write commands do not work with Sigma 4.04 (3.41.14).
ModBMS is being used to read and write data to Sigma 4.04 (3.41.14). Data is read correctly from Sigma, but it is not possible to write.
Sigma 4.04 (3.41.14) has a known issue of not accepting DDE write commands.
This issue is corrected by installing service pack 1 for this release.
Please click HERE to upload the service pack.