turck BL20 Series - Page 433

431
2020/09
Masking with REG_SSI_MASK
The following applies to bit 0 (SSI group diagnostics) of the diagnostics interface and SSI_DIAG of
the process input data:
(SSI_STS0 & EN_D0_DS) ||(SSI_STS1 & EN_D1_DS) || (SSI_STS2 & EN_D2_DS) || (SSI_STS3 &
EN_D3_DS)
Resetting the register bank
If register REG_SF is written with the signature:
„LD20” = 0 × 6C643230
all default values of the retentive registers (incl. parameter registers) are reset.
If register REG_SF is written with the signature:
„LD48” = 0 × 6C643438
all default values of the retentive registers except the parameter registers are reset.
Process input data REG_SSI_MASK
Byte Bit 7 Bit 6 B 5 B 4 B 3 B 2 B 1
SSI_STS0 0 EN_ D0_RMS0 EN_D0_DS - SSI_FRAME_BIT_SEL0
SSI_STS1 1 EN_ D1_RMS1 EN_D1_DS - SSI_FRAME_BIT_SEL1
SSI_STS2 2 EN_ D2_RMS2 EN_D2_DS - SSI_FRAME_BIT_SEL2
SSI_STS3 3 EN_ D3_RMS3 EN_D3_DS - SSI_FRAME_BIT_SEL3
Designation Value Description
EN_D×_RMSx 0 The transfer of the SSI status messages to the process input data is not
activated
1 The transfer of the SSI status messages to the process input data is acti-
vated
EN_ D×_DS 0 The evaluation of the SSI status messages for bit 0 of the diagnostics is
not activated
1 The evaluation of the SSI status messages for bit 0 of the diagnostics is
activated.
SSI_FRAME_BIT_SEL 0-31 Definition of the selected bits in the frame of the SSI encoder to be
evaluated or copied.
default 0
NOTE
Overwritten values are lost.all default values of the retentive registers (incl. parameter reg-
isters) are reset.