Process Information: Monitored Direction

IEC60870-5-101/104 servers support this process information in the monitored direction:

  • M_SP: single-point information

  • M_DP: double-point information

  • M_ME_A: measurements value, normalized value

  • M_ME_B: measurements value, scaled value

  • M_ME_C: measurements value, short floating-point

  • M_IT: integrated totals

  • M_ST: step position information

  • M_BO: bit and byte strings

Process Information: Control Direction

IEC60870-5-101/104 servers support this process information in the control direction:

  • C_SC: single command

  • C_DC: double command

  • C_SE_A: set-point command, normalized value

  • C_SE_B: set-point command, scaled

  • C_SE_C: set-point command, short floating-point number

  • C_RC: regulating step command

  • C_BO: bit-string of 32 bits

System Information: Monitored Direction

IEC60870-5-101/104 servers support this system information in the monitored direction:

  • M_EI: end of initialization with COT of initialized

  • M_EI_NA: After receiving an M_EI_NA EOI message, you can configure these items:
    • general interrogation information

    • clock synchronization

    • counter-interrogation

System Information: Control Direction

IEC60870-5-101/104 servers support this system information in the control direction:

  • C_IC: These interrogation command points support G/1~16 qualifiers and the Deactivation/Activation operation modes.

  • C_CI: These counter-interrogation commands support G/1~4 qualifiers and Read/Freeze/Freeze-With-Reset/Reset operation modes.

  • C_CS: clock synchronization commands

  • C_TS: test commands

    C_RP: These reset process command points support the General/Event qualifiers.

  • C_RD: read commands

Parameter Information: Control Direction

IEC60870-5-101/104 servers support these parameters in the control direction:

  • P_ME_A: parameter for measurement, normalized value

  • P_ME_B: parameter for measurement, scaled value

  • P_ME_C: parameter for measurement, short-floating point number

  • P_AC: parameter activation support for the Deactivation/Activation operation mode

M_CUSTOME_IT_D

IEC60870-5-101/104 servers support 64–bit M_CUSTOME_IT_D points, which support the mapping functions to the Device DDT variables of the CPU.